HealthKit

RSS for tag

Access and share health and fitness data while maintaining the user’s privacy and control using HealthKit.

Posts under HealthKit tag

200 Posts

Post

Replies

Boosts

Views

Activity

Rejected using Healthkit
Hi all, I'm developing fitness app and I use healthkit to track user's "STEPS" count from their iphone devices. I have been receiving this rejection and can't seem to get past this: Guideline 2.5.1 - Performance - Software Requirements The app uses the HealthKit or CareKit APIs but does not clearly identify the HealthKit and CareKit functionality in the app's user interface. Apps using these APIs should be clearly indicated to provide transparency and valuable information to users. Next Steps To resolve this issue, it would appropriate to clearly identify the HealthKit and CareKit functionality in the app's user interface. Resources Learn more about software requirements in guideline 2.5.1. I have modified my app: adding user permission prompt, adding healthkit notification, adding healthkit indicator in the UI, adding healthkit information in the onboarding process. I keep getting the same message. When I asked the reviewer what else could be done to satisfy the requirement, I only get boiler plate message above. Anyone know what they really looking for? Any insights is appreciated. Thanks!
1
1
837
Oct ’25
Guidance / Documentation on iOS 18.6.1 Blood Oxygen Saturation
Are there any HealthKit related changes to be aware of in the new update that enables SPO2 / Blood Oxygen Saturation measurements on certain Apple Watch models within the US? I’m aware of processing happening on the phone…. But beyond that: Does this mean values are then saved to Apple Health? Do these models still take background SPO2 measurements in the same way as other models do? Are these values then visible in third party iOS apps as normal through HealthKit? Do these values sync back to the paired Apple Watch HealthKit store for third party apps to access on the Watch? For reference I have an iOS and WatchOS app that, amongst other features, provides the ability to see your SPO2 values in the Watch app, complications and in the iOS app.
7
0
1.1k
Sep ’25
What’s the expected frequency of HealthKit enableBackgroundDelivery: HKCategoryTypeIdentifier.sleepAnalysis
Hello, I have enabled HealthKit background delivery for sleep analysis samples: private func setupSleepDataBackgroundDelivery() { if let sleepType = HKObjectType.categoryType(forIdentifier: HKCategoryTypeIdentifier.sleepAnalysis) { healthStore.enableBackgroundDelivery(for: sleepType, frequency: .immediate) { (success, error) in } } } In general, this function works. But I would love to know what the limitations / expected delivery delay for frequency: .immediate is. The documentation is only very vague about this and specifies that some sample types such as steps are only delivered once per hour. But how about sleep data? Is this expected to be delivered immediately once available on iPhone? Thanks a lot for your help!
2
2
1k
Sep ’25
Sleep Score API access
New in iOS 26 and WatchOS 26 is a Sleep Score calculation for users based on Duration, Bedtime and Interruptions. Unfortunately I can't find any APIs for developers to tap into this metric. Yes, in theory it's all created off the same Sleep Analysis data already available with HealthKit but that makes it very hard to recreate in our apps. If the numbers don't match up exactly, users will understandably complain. Can anyone confirm that this is the case and I've not missed a Sleep Score API? I'll then file feedback. Hopefully this doesn't go the way of Heart Rate Zones where the Apple Watch iPhone app has generated them for years and provided no way for third party apps to access these values (yes many feedbacks provided previously).
3
1
1.1k
Sep ’25
What determines which suggested apps are listed in Health?
Hello - I'm wondering about the suggested apps listed by Apple in their Health app. For example, if you select the "Sleep" category there are a bunch of suggested apps like AutoSleep and Sleepzy. These are not Sleep apps that I installed on my own phone or ever shared sleep data with. Is there a way to request to have a relevant app shown there? Or is it more automatic, like you're an app that integrates with HealthKit in certain ways and Apple has a way of determining that app is suitable for the user (ex. App Store popularity, user behavior, etc.)
1
0
217
Sep ’25
Old HealthKit samples from WatchOS getting deleted and recreated years later
I have recently come across a couple of odd HealthKit step samples from WatchOS. They represent step data measured in 2022 by my Apple Watch, but they have a creation date ("Date Added to Health") within the past couple of days. These odd samples show a "View All Quantities" button at the bottom of the sample Details page in the Health app on iOS 26 (which I've never seen before); the button leads to a list of many small step quantities, almost as if some older, smaller samples were consolidated into these newer samples. Even weirder is that at least some of these samples seem to be getting re-created repeatedly. For example, I've seen the same sample with a "Date Added to Health" of 9/5/25, then 9/8/25, twice on 9/9/25, and twice on 9/10/25. These samples were originally created by WatchOS 9, and are not being deleted/recreated by any apps on my device. I have only observed it since I updated to the iOS 26 beta (and now the RC); my watch was still running iOS 18 the first time it happened, but it has also happened since my watch was updated to WatchOS 26 beta. I did some debug printing of the odd samples and the normal samples surrounding them for comparison. Here's a normal sample: Sample: 80AC5AC5-CBD7-4581-B275-0C2ACA35B7B4 6 count 80AC5AC5-CBD7-4581-B275-0C2ACA35B7B4, (9.0), "Watch6,1" (9.0) "Apple Watch" (2022-09-15 16:20:14 -0500 - 2022-09-15 16:20:16 -0500) Device: <<HKDevice: 0x10591eee0>, name:Apple Watch, manufacturer:Apple Inc., model:Watch, hardware:Watch6,1, software:9.0, creation date:2022-08-25 18:22:26 +0000> Source revision: <HKSourceRevision name:My Apple Watch, bundle:com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, version:9.0, productType:Watch6,1, operatingSystemVersion:9.0> Source: <HKSource:0x110588690 "My Apple Watch", bundle identifier: com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, localDeviceSource: 0, modification date: 2024-01-31 05:49:18 +0000> Date added: 2022-09-15 21:20:16 +0000 Days between end and add: 0 And here's one of the odd samples: Sample: 4982487F-1189-4F16-AB00-61E37818A66D 676 count 4982487F-1189-4F16-AB00-61E37818A66D, (9.0), "iPhone12,1" (16.2) "Apple Watch" metadata: { HKMetadataKeySyncIdentifier = "6:38082859-D9C8-466A-8882-53443B2A2D94:684969619.25569:684970205.31182:119"; HKMetadataKeySyncVersion = 1; } (2022-09-15 16:20:19 -0500 - 2022-09-15 16:30:05 -0500) Device: <<HKDevice: 0x10591ce40>, name:Apple Watch, manufacturer:Apple Inc., model:Watch, hardware:Watch6,1, software:9.0, creation date:2022-08-25 18:22:26 +0000> Source revision: <HKSourceRevision name:My Apple Watch, bundle:com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, version:9.0, productType:iPhone12,1, operatingSystemVersion:16.2> Source: <HKSource:0x110588640 "My Apple Watch", bundle identifier: com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, localDeviceSource: 0, modification date: 2024-01-31 05:49:18 +0000> Date added: 2025-09-08 21:11:12 +0000 Days between end and add: 1088 Here's that same odd sample a day later, apparently recreated: Sample: 9E8B12FC-048D-4ECD-BE5B-D387AADE5130 676 count 9E8B12FC-048D-4ECD-BE5B-D387AADE5130, (9.0), "iPhone12,1" (16.2) "Apple Watch" metadata: { HKMetadataKeySyncIdentifier = "6:38082859-D9C8-466A-8882-53443B2A2D94:684969619.25569:684970205.31182:119"; HKMetadataKeySyncVersion = 1; } (2022-09-15 16:20:19 -0500 - 2022-09-15 16:30:05 -0500) Device: <<HKDevice: 0x12f01c4e0>, name:Apple Watch, manufacturer:Apple Inc., model:Watch, hardware:Watch6,1, software:9.0, creation date:2022-08-25 18:22:26 +0000> Source revision: <HKSourceRevision name:My Apple Watch, bundle:com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, version:9.0, productType:iPhone12,1, operatingSystemVersion:16.2> Source: <HKSource:0x12f0f8230 "My Apple Watch", bundle identifier: com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, localDeviceSource: 0, modification date: 2024-01-31 05:49:18 +0000> Date added: 2025-09-09 20:53:18 +0000 Days between end and add: 1089 It's worth pointing out some differences between the "normal" and "odd" samples (besides the "View All Quantities" button in the Health app). The recreated "odd" samples have a different Source Revision - the "productType" and "operatingSystemVersion" refer to my iPhone, not the Apple Watch device that actually captured the samples. The odd samples also have metadata keys that don't exist in the other samples - HKMetadataKeySyncIdentifier and HKMetadataKeySyncVersion. Questions I'm hoping someone can help with: What are these samples? Why/how do they have a "View All Quantities" button that shows sub-samples? Is this new to iOS 26? Why are some of the samples getting recreated multiple times?
2
0
270
Sep ’25
Extremely persistent HealthKit read permissions issue
Overview of Issue My implementation of HealthKit is no longer able to read values due to authorization issues (ex. "HealthKitService: Not authorized to read HKQuantityTypeIdentifierHeight. Status: 0"). I have been through every conceivable debugging step including building a minimal project that just requests HealthKit data and the issue has persisted. I've tried my personal as well as Organizational developer teams. My MacOS and Mac Mini. Simulator and personal device. Rechecked entitlements, reprovisioned certificates. This makes no sense. And I have been unable to find anything similar in the Developer forums or documentation. The problem occurs during the onboarding flow when the app requests HealthKit permissions. Even when the user grants permission in the HealthKit authorization sheet, the authorizationStatus for characteristic data types (like Biological s3x and Date of Birth) and quantity data types (like Height and Weight) consistently returns as .sharingDenied. This prevents the app from pre-filling the user's profile with their HealthKit data, forcing them to enter it manually. The issue seems to be environmental rather than a specific code bug, as it has been reproduced in a minimal test case app and persists despite extensive troubleshooting. Minimal test project: https://github.com/ChristopherJones72521/HealthKitTestApp** STEPS TO REPRODUCE Build app, attempt to sign in. No data is imported into the respective fields in the main app. Console logs confirm. PLATFORM AND VERSION iOS Development environment: Xcode Version 16.4 (16F6), macOS 15.5 (24F74) Run-time configuration: iOS 18.5 Relevant Code Snippets Here are the key pieces of code that illustrate the implementation and the problem: 1. Requesting HealthKit Permissions (HealthKitService.swift) This function is called to request authorization for the required HealthKit data types. The typesToRead and typesToWrite are defined in a centralized HealthKitTypes struct. // HealthKitService.swift func requestPermissions(completion: @escaping (Bool, Error?) -&gt; Void) { guard HKHealthStore.isHealthDataAvailable() else { completion(false, HealthKitError.notAvailable) return } let typesToRead: Set&lt;HKObjectType&gt; = [ HKObjectType.characteristicType(forIdentifier: .dateOfBirth)!, HKObjectType.characteristicType(forIdentifier: .biologicals3x)!, HKObjectType.quantityType(forIdentifier: .height)!, HKObjectType.quantityType(forIdentifier: .bodyMass)! ] let typesToWrite: Set&lt;HKSampleType&gt; = [ HKObjectType.workoutType(), HKObjectType.quantityType(forIdentifier: .activeEnergyBurned)! ] healthStore.requestAuthorization(toShare: typesToWrite, read: typesToRead) { success, error in DispatchQueue.main.async { if let error = error { print("HealthKitService: Error requesting authorization: \(error.localizedDescription)") completion(false, error) } else { print("HealthKitService: Authorization request completed. Success: \(success)") completion(success, nil) } } } } 2. Reading Biological s3x (HealthKitService.swift) This function attempts to read the user's biological s3x. The print statements are included to show the authorization status check, which is where the issue is observed. // HealthKitService.swift func readBiologicals3x() async throws -&gt; HKBiologicals3xObject? { guard HKHealthStore.isHealthDataAvailable() else { throw HealthKitError.notAvailable } let s3xAuthStatus = healthStore.authorizationStatus(for: HKObjectType.characteristicType(forIdentifier: .biologicals3x)!) print("HealthKitService: Auth status for Biological s3x: \(s3xAuthStatus.rawValue)") guard s3xAuthStatus == .sharingAuthorized else { print("HealthKitService: Not authorized to read Biological s3x.") throw HealthKitError.notAuthorized } do { return try healthStore.biologicals3x() } catch { print("HealthKitService: Error executing biologicals3x query: \(error.localizedDescription)") throw HealthKitError.queryFailed(error) } } 3. Calling HealthKit Functions During Onboarding (OnboardingFlowView.swift) This is how the HealthKitService is used within the onboarding flow. The requestHealthKitAndPrefillData function is called after the user signs in, and it attempts to read the data to pre-fill the profile form. // OnboardingFlowView.swift func readHealthKitDataAsync() async { print("Attempting to read HealthKit data async...") // ... (calls to HealthKitService.shared.readDateOfBirth(), readHeight(), etc.) do { if let biologicals3xObject = try await HealthKitService.shared.readBiologicals3x() { if self.selectedGender == nil { switch biologicals3xObject.biologicals3x { case .female: self.selectedGender = .female case .male: self.selectedGender = .male case .other: self.selectedGender = .other default: break } } } } catch { print("OnboardingFlowView: Error reading Biological s3x: (error.localizedDescription)") } print("OnboardingFlowView: Finished HealthKit data processing.") } Console Logs Attempting to read HealthKit data async... HealthKitService: Reading Date of Birth... HealthKitService: Current auth status for DOB (during read attempt): 0 HealthKitService: Not authorized to read Date of Birth. Status: 0 OnboardingFlowView: Error reading Date of Birth: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.) HealthKitService: Reading Height... HealthKitService: Current auth status for HKQuantityTypeIdentifierHeight (during read attempt): 0 HealthKitService: Not authorized to read HKQuantityTypeIdentifierHeight. Status: 0 OnboardingFlowView: Error reading Height: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.) HealthKitService: Reading Weight (Body Mass)... HealthKitService: Current auth status for HKQuantityTypeIdentifierBodyMass (during read attempt): 0 HealthKitService: Not authorized to read HKQuantityTypeIdentifierBodyMass. Status: 0 OnboardingFlowView: Error reading Weight: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.) HealthKitService: Pre-read check for Biologicals3x auth status: 1 (Denied) HealthKitService: Reading Biological s3x... HealthKitService: Current auth status for Biological s3x (during read attempt): 1 HealthKitService: Not authorized to read Biological s3x. Status: 1 OnboardingFlowView: Error reading Biological s3x: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.)
2
0
391
Sep ’25
Is it possible to get Workout intervals and data from third party app via HealthKit or WorkoutKit?
If a user selects custom structured workout in the apple watch Workout app and records a run with intervals, how can my third party app pull in that data? I can obviously get the workout and health stuff like heart rate, but I cannot find how to save the intervals and the relevant data. The workout events are not seemingly helpful - segments are not obviously related to this. Is it possible? Is it only possible to have the third party app create a customworkout with metadata and then our third party app parses the interval distance/time based on our own structure? I think this stuff should be able to be accessed.
0
0
370
Aug ’25
UIScene.ConnectionOptions.shouldHandleActiveWorkoutRecovery Missing?
According to the WWDC25 Presentation Track workouts with HealthKit on iOS and iPadOS, there is supposed to be a new property for restoring an active workout after a crash on iOS/iPadOS. The developer documentation also supports this. However, this property does not seem to exist in the latest Xcode 26 beta, even in projects targeting iOS 26.0 as the minimum version. Am I missing something? Has this property not been made available yet? It is actually looking like all of the new iOS 26.0 properties are missing UIScene.ConnectionOptions on my system.
3
0
474
Aug ’25
Xcode 26 Beta 5 HealthKit DLYD Symbol Crash
I'm having a problem with Xcode 26 where a symbol bug is causing my app to crash at launch if they are running iOS 17.X This has to do with a HealthKit API that was introduced in iOS 18.1 HKQuantityType(.appleSleepingBreathingDisturbances), I use availability clauses to ensure I only support it in that version. This all worked fine with Xcode 16.4 but breaks in Xcode 26. This means ALL my users running iOS 17 will get at launch crashes if this isn't resolved in the Xcode GM seed. I'll post the code here in case I'm doing anything wrong. This, the HealthKit capability, the "HealthKit Privacy - Health Share Usage Description" and "Privacy - Health Update Usage Description", and device/simulator on iOS 17.X are all you need to reproduce the issue. I've made a feedback too as I'm 95% sure it's a bug: FB19727966 import SwiftUI import HealthKit struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .padding() .task { print(await requestPermission()) } } } #Preview { ContentView() } func requestPermission() async -> Bool { if #available(iOS 18.0, *) { let healthTypes = [HKQuantityType(.appleSleepingBreathingDisturbances)] var readTypes = healthTypes.map({$0}) let write: Set<HKSampleType> = [] let res: ()? = try? await HKHealthStore().requestAuthorization(toShare: write, read: Set(readTypes)) guard res != nil else { print("requestPermission returned nil") return false } return true } else { return false} }
1
0
775
Aug ’25
HealthKit Background Delivery and URLSession.shared.dataTask
Hello. I have implemented background delivery for detecting changes in health kit with HKObserverQuery. It works well, I am reading changes. And I am sending this changes to an https endpoint with using an URLSession.shared.dataTask inside the HKObserverQuery callback while my app is terminated. I have several questions about this: Is starting a URLSession.shared.dataTask inside HKObserverQuery callback when app is terminated is correct way to do it? I am calling HKObserverQuery completion handler whatever dataTask returned success or failure but I am wondering what if the network connection is low and this dataTask response could not received in 2-3 seconds. I have read background deliveries should take 1-2 seconds. Should I use an URL session with background configuration for sending those HTTPS requests? If so, should I use download task or upload task (they don't fit my requirements I am sending a simple json)?
2
0
492
Aug ’25
Health Kit Background Delivery and URLSession.shared.dataTask
Hello. I have implemented background delivery for detecting changes in health kit with HKObserverQuery. It works well, I am reading changes. And I am sending this changes to an https endpoint with using an URLSession.shared.dataTask inside the HKObserverQuery callback while my app is terminated. I have several questions about this: Is starting a URLSession.shared.dataTask inside HKObserverQuery callback is correct way to do it? I am calling HKObserverQuery completion handler whatever dataTask returned success or failure but I am wondering what if the network connection is low and this dataTask response could not received in 2-3 seconds. I have read HealthKit background deliveries should take 1-2 seconds. Should I use background task somehow for sending those HTTPS requests?
1
0
492
Aug ’25
HealthKit Permission request throws error
Hi guys, We have an app that consumes data from Apple HealthKit. We use an HKObserverQuery to monitor changes in HealthKit data, and occasionally use regular HKSampleQuery requests when the app is in the foreground. Over the past few weeks, we’ve been encountering a significant number of errors when requesting additional HealthKit permissions (beyond what the user has already granted). The error message we’re seeing is: The operation couldn't be completed. (_UIViewServiceInterfaceErrorDomain error 2.) When this error occurs, all previously granted HealthKit permissions are automatically revoked, which is highly disruptive. We have a few questions and would greatly appreciate any insights or explanations regarding this behavior: Could this error occur if a permission request is triggered right as the app moves to the background? Why would previously granted permissions be revoked automatically after this error? If this is due to some internal behavior in iOS (e.g., a system-level protection or timeout), is there any known workaround or best practice to prevent this from happening? Thanks in advance for your help!
2
0
176
Jul ’25
Support for cycling power & cadence sensors in HKWorkoutSession on iOS?
Hi everyone, while testing HKWorkoutSession with HKLiveWorkoutBuilder on iOS 26 Beta (cycling workout), I noticed the following behavior: – Starting a cycling HKWorkoutSession automatically connects to my Bluetooth heart rate monitor and records HR into HealthKit ✅ – However, my Bluetooth cycling power meter and cadence sensor (standard BLE Cycling Power & CSC services) are not connected automatically, and no data is recorded into HealthKit ❌ On Apple Watch, when starting a cycling workout, these sensors do connect automatically and their data is written to HealthKit — which is exactly what I would expect on iOS as well. Question: Is this by design, or is support for power and cadence sensors planned for iOS in the same way as on watchOS? Or do we, as developers, need to implement the BLE Cycling Power and CSC profiles ourselves (via CoreBluetooth) if we want these metrics? Environment: – iOS 26 Beta – HKWorkoutSession & HKLiveWorkoutBuilder (cycling) – Bluetooth HRM connects automatically – BLE power & cadence sensors do not This feature would make it much easier to develop cycling apps with full HealthKit integration, and also create a more consistent user experience compared to watchOS. Thanks for any insights!
2
1
699
Jul ’25
HKLiveWorkoutBuilder get wrong calorie data for iOS 26
In iOS 26, HKLiveWorkoutBuilder is supported, which we can use like HKWorkoutSession in watchOS - this is very exciting. However, it currently seems to have a bug in calculating calories. I tested it in my app, and for nearly 6 minutes with an average heart rate of 134, it only calculated 8 calories consumed (80 calories per hour), including basal consumption, which is obviously incorrect. (I used Powerboats Pro 2 connected to my phone, which includes heart rate data, and HKLiveWorkoutBuilder correctly collected the heart rate, which is great.) I think my code is correct. func workoutBuilder(_ workoutBuilder: HKLiveWorkoutBuilder, didCollectDataOf collectedTypes: Set<HKSampleType>) { for type in collectedTypes { guard let quantityType = type as? HKQuantityType else { return // Nothing to do. } let statistics = workoutBuilder.statistics(for: quantityType) if let statistics = statistics { switch statistics.quantityType { case HKQuantityType.quantityType(forIdentifier: .heartRate): /// - Tag: SetLabel let heartRateUnit = HKUnit.count().unitDivided(by: HKUnit.minute()) let value = statistics.mostRecentQuantity()?.doubleValue(for: heartRateUnit) let roundedValue = Double( round( 1 * value! ) / 1 ) if let avg = statistics.averageQuantity()?.doubleValue(for: heartRateUnit) { self.avgHeartRate = avg } self.delegate?.didUpdateHeartBeat(self, heartBeat: Int(roundedValue)) case HKQuantityType.quantityType(forIdentifier: .activeEnergyBurned): let energyUnit = HKUnit.kilocalorie() let value = statistics.sumQuantity()?.doubleValue(for: energyUnit) self.totalActiveEnergyBurned = Double(value!) print("didUpdate totalActiveEnergyBurned: \(self.totalActiveEnergyBurned)") self.delegate?.didUpdateEnergyBurned(self, totalEnergy: self.totalActiveEnergyBurned + self.totalBasalEneryBurned) return case HKQuantityType.quantityType(forIdentifier: .basalEnergyBurned): let energyUnit = HKUnit.kilocalorie() let value = statistics.sumQuantity()?.doubleValue(for: energyUnit) self.totalBasalEneryBurned = Double(value!) print("didUpdate totalBasalEneryBurned: \(self.totalBasalEneryBurned)") self.delegate?.didUpdateEnergyBurned(self, totalEnergy: self.totalActiveEnergyBurned + self.totalBasalEneryBurned) return default: print("unhandled quantityType=\(statistics.quantityType) when processing statistics") return } } I think I've found the source of the problem: let workoutConfiguration = HKWorkoutConfiguration() workoutConfiguration.activityType = .traditionalStrengthTraining //walking, running is ok workoutConfiguration.locationType = .outdoor When I set the activityType to walking or running, the calorie results are correct, showing several hundred calories per hour. However, when activityType is set to traditionalStrengthTraining or jumprope, the calculations are incorrect. PS: I'm currently using Xcode 26 beta3 and iOS 26 beta3. Hope this issue can be resolved. Thanks.
1
0
445
Jul ’25
Adding workoutEffortScore to HKWorkout
I'm trying to hook into the new workoutEffort score supported in iOS 18, I am collecting this information from users when they submit their workout and trying to add a sample to the HKWorkout in the same manner as I've been adding other samples like bodyweight, calories burned, etc. I'm receiving the error: HKWorkout: Sample of type HKQuantityTypeIdentifierWorkoutEffortScore must be related to a workout I tried adding the samples using HKWorkoutBuilder.add([samples]) as which has been working perfectly for calories burned & bodyweight, but I am receiving the above error for workoutEffortScore As a second approach, I tried adding the sample after I called finishWorkout on the HKWorkoutBuilder and received back the HKWorkout object using HKHealthStore.add([samples], to: HKWorkout) and am still receiving the same error! I don't know otherwise how to relate a sample to a workout, I thought those were the APIs to do so? I'm using Xcode 16.0 RC (16A242) and testing on an iOS 16 Pro simulator
5
1
1.9k
Jul ’25
HealthKit - HKWorkoutRouteBuilder never returns from insert when created from newly added iOS HKLiveWorkoutBuilder API on Simulator
Has anyone had success using the HKWorkoutRouteBuilder in conjunction with the new iOS support for HKLiveWorkoutBuilder? I was running my watchOS code that worked now brought over to iOS and when I call insertRouteData the function never returns. This happens for both the legacy and closure based block patterns. private var workoutSession: HKWorkoutSession? private var workoutBuilder: HKLiveWorkoutBuilder? private var serviceSession: CLServiceSession? private var workoutRouteBuilder: HKWorkoutRouteBuilder? private func startRouteBuilder() { Task { @MainActor in self.serviceSession = CLServiceSession(authorization: .whenInUse) self.workoutRouteBuilder = self.workoutBuilder?.seriesBuilder(for: .workoutRoute()) as? HKWorkoutRouteBuilder self.locationUpdateTask = Task { do { for try await update in CLLocationUpdate.liveUpdates(.fitness) { if let location = update.location { self.logger.notice(#function, metadata: [ "location": .stringConvertible(location) ]) try await self.workoutRouteBuilder?.insertRouteData([location]) self.logger.notice("Added location") } } } catch { self.logger.error(#function, metadata: [ "error": .stringConvertible(error.localizedDescription) ]) } } } } I did also try CLLocationManager API with delegate which is what my current watch code uses (a bit old). Same issue. Here is what I've found so far: If the workout session is not running, and if the builder hasn't started collection yet, inserting route data works just fine I've tried different swift language modes, flipped from main actor to non isolated project settings (Xcode 26) Modified Apple's sample code and added location route building to that and reproduced the error, modified sample attached to feedback This issue was identified against Xcode 26 beta 2 and iPhone 16 Pro simulator. Works as expected on my iPhone 13 Pro beta 2. FB18603581 - HealthKit: HKWorkoutRouteBuilder insert call within CLLocationUpdate task never returns
0
0
384
Jul ’25
Incorrect Step Count from Apple HealthKit Data
Hi, i'm trying to get the number of step counts a person has taken. I decided to pull the data from health kit and the number of steps are incorrect. Come to find out apple health recommends an app called pedometer++ for the number of steps counted and after testing I realized that they are getting the correct number of steps a person is taking. How can I pull the correct number of steps a person has taken? I want to be able to merge the data from watch and phone to make sure we are getting the correct number of steps but not double counting the steps either. any guidance on this would be appreciated! Here's the code snippet that i'm using right now: permissions: { read: [AppleHealthKit.Constants.Permissions.StepCount], write: [], }, }; AppleHealthKit.initHealthKit(permissions, error => { if (error) { console.log('Error initializing HealthKit: ', error); return; } else { dispatch(setAllowHealthKit(true)); getHealthKitData(); console.log('HealthKit initialized successfully'); } }); const getHealthKitData = async () => { try { const today = new Date(); const options = { startDate: new Date(today.setHours(0, 0, 0, 0)).toISOString(), endDate: new Date().toISOString(), }; const steps = await new Promise((resolve, reject) => { AppleHealthKit.getStepCount(options, (error, results) => { if (error) reject(error); resolve(results?.value); }); }); setStepsCount(steps); } catch (error) { console.error('Error fetching HealthKit data:', error); } };
6
0
607
Jul ’25
Rejected using Healthkit
Hi all, I'm developing fitness app and I use healthkit to track user's "STEPS" count from their iphone devices. I have been receiving this rejection and can't seem to get past this: Guideline 2.5.1 - Performance - Software Requirements The app uses the HealthKit or CareKit APIs but does not clearly identify the HealthKit and CareKit functionality in the app's user interface. Apps using these APIs should be clearly indicated to provide transparency and valuable information to users. Next Steps To resolve this issue, it would appropriate to clearly identify the HealthKit and CareKit functionality in the app's user interface. Resources Learn more about software requirements in guideline 2.5.1. I have modified my app: adding user permission prompt, adding healthkit notification, adding healthkit indicator in the UI, adding healthkit information in the onboarding process. I keep getting the same message. When I asked the reviewer what else could be done to satisfy the requirement, I only get boiler plate message above. Anyone know what they really looking for? Any insights is appreciated. Thanks!
Replies
1
Boosts
1
Views
837
Activity
Oct ’25
Guidance / Documentation on iOS 18.6.1 Blood Oxygen Saturation
Are there any HealthKit related changes to be aware of in the new update that enables SPO2 / Blood Oxygen Saturation measurements on certain Apple Watch models within the US? I’m aware of processing happening on the phone…. But beyond that: Does this mean values are then saved to Apple Health? Do these models still take background SPO2 measurements in the same way as other models do? Are these values then visible in third party iOS apps as normal through HealthKit? Do these values sync back to the paired Apple Watch HealthKit store for third party apps to access on the Watch? For reference I have an iOS and WatchOS app that, amongst other features, provides the ability to see your SPO2 values in the Watch app, complications and in the iOS app.
Replies
7
Boosts
0
Views
1.1k
Activity
Sep ’25
What’s the expected frequency of HealthKit enableBackgroundDelivery: HKCategoryTypeIdentifier.sleepAnalysis
Hello, I have enabled HealthKit background delivery for sleep analysis samples: private func setupSleepDataBackgroundDelivery() { if let sleepType = HKObjectType.categoryType(forIdentifier: HKCategoryTypeIdentifier.sleepAnalysis) { healthStore.enableBackgroundDelivery(for: sleepType, frequency: .immediate) { (success, error) in } } } In general, this function works. But I would love to know what the limitations / expected delivery delay for frequency: .immediate is. The documentation is only very vague about this and specifies that some sample types such as steps are only delivered once per hour. But how about sleep data? Is this expected to be delivered immediately once available on iPhone? Thanks a lot for your help!
Replies
2
Boosts
2
Views
1k
Activity
Sep ’25
Sleep Score API access
New in iOS 26 and WatchOS 26 is a Sleep Score calculation for users based on Duration, Bedtime and Interruptions. Unfortunately I can't find any APIs for developers to tap into this metric. Yes, in theory it's all created off the same Sleep Analysis data already available with HealthKit but that makes it very hard to recreate in our apps. If the numbers don't match up exactly, users will understandably complain. Can anyone confirm that this is the case and I've not missed a Sleep Score API? I'll then file feedback. Hopefully this doesn't go the way of Heart Rate Zones where the Apple Watch iPhone app has generated them for years and provided no way for third party apps to access these values (yes many feedbacks provided previously).
Replies
3
Boosts
1
Views
1.1k
Activity
Sep ’25
What determines which suggested apps are listed in Health?
Hello - I'm wondering about the suggested apps listed by Apple in their Health app. For example, if you select the "Sleep" category there are a bunch of suggested apps like AutoSleep and Sleepzy. These are not Sleep apps that I installed on my own phone or ever shared sleep data with. Is there a way to request to have a relevant app shown there? Or is it more automatic, like you're an app that integrates with HealthKit in certain ways and Apple has a way of determining that app is suitable for the user (ex. App Store popularity, user behavior, etc.)
Replies
1
Boosts
0
Views
217
Activity
Sep ’25
Old HealthKit samples from WatchOS getting deleted and recreated years later
I have recently come across a couple of odd HealthKit step samples from WatchOS. They represent step data measured in 2022 by my Apple Watch, but they have a creation date ("Date Added to Health") within the past couple of days. These odd samples show a "View All Quantities" button at the bottom of the sample Details page in the Health app on iOS 26 (which I've never seen before); the button leads to a list of many small step quantities, almost as if some older, smaller samples were consolidated into these newer samples. Even weirder is that at least some of these samples seem to be getting re-created repeatedly. For example, I've seen the same sample with a "Date Added to Health" of 9/5/25, then 9/8/25, twice on 9/9/25, and twice on 9/10/25. These samples were originally created by WatchOS 9, and are not being deleted/recreated by any apps on my device. I have only observed it since I updated to the iOS 26 beta (and now the RC); my watch was still running iOS 18 the first time it happened, but it has also happened since my watch was updated to WatchOS 26 beta. I did some debug printing of the odd samples and the normal samples surrounding them for comparison. Here's a normal sample: Sample: 80AC5AC5-CBD7-4581-B275-0C2ACA35B7B4 6 count 80AC5AC5-CBD7-4581-B275-0C2ACA35B7B4, (9.0), "Watch6,1" (9.0) "Apple Watch" (2022-09-15 16:20:14 -0500 - 2022-09-15 16:20:16 -0500) Device: <<HKDevice: 0x10591eee0>, name:Apple Watch, manufacturer:Apple Inc., model:Watch, hardware:Watch6,1, software:9.0, creation date:2022-08-25 18:22:26 +0000> Source revision: <HKSourceRevision name:My Apple Watch, bundle:com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, version:9.0, productType:Watch6,1, operatingSystemVersion:9.0> Source: <HKSource:0x110588690 "My Apple Watch", bundle identifier: com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, localDeviceSource: 0, modification date: 2024-01-31 05:49:18 +0000> Date added: 2022-09-15 21:20:16 +0000 Days between end and add: 0 And here's one of the odd samples: Sample: 4982487F-1189-4F16-AB00-61E37818A66D 676 count 4982487F-1189-4F16-AB00-61E37818A66D, (9.0), "iPhone12,1" (16.2) "Apple Watch" metadata: { HKMetadataKeySyncIdentifier = "6:38082859-D9C8-466A-8882-53443B2A2D94:684969619.25569:684970205.31182:119"; HKMetadataKeySyncVersion = 1; } (2022-09-15 16:20:19 -0500 - 2022-09-15 16:30:05 -0500) Device: <<HKDevice: 0x10591ce40>, name:Apple Watch, manufacturer:Apple Inc., model:Watch, hardware:Watch6,1, software:9.0, creation date:2022-08-25 18:22:26 +0000> Source revision: <HKSourceRevision name:My Apple Watch, bundle:com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, version:9.0, productType:iPhone12,1, operatingSystemVersion:16.2> Source: <HKSource:0x110588640 "My Apple Watch", bundle identifier: com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, localDeviceSource: 0, modification date: 2024-01-31 05:49:18 +0000> Date added: 2025-09-08 21:11:12 +0000 Days between end and add: 1088 Here's that same odd sample a day later, apparently recreated: Sample: 9E8B12FC-048D-4ECD-BE5B-D387AADE5130 676 count 9E8B12FC-048D-4ECD-BE5B-D387AADE5130, (9.0), "iPhone12,1" (16.2) "Apple Watch" metadata: { HKMetadataKeySyncIdentifier = "6:38082859-D9C8-466A-8882-53443B2A2D94:684969619.25569:684970205.31182:119"; HKMetadataKeySyncVersion = 1; } (2022-09-15 16:20:19 -0500 - 2022-09-15 16:30:05 -0500) Device: <<HKDevice: 0x12f01c4e0>, name:Apple Watch, manufacturer:Apple Inc., model:Watch, hardware:Watch6,1, software:9.0, creation date:2022-08-25 18:22:26 +0000> Source revision: <HKSourceRevision name:My Apple Watch, bundle:com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, version:9.0, productType:iPhone12,1, operatingSystemVersion:16.2> Source: <HKSource:0x12f0f8230 "My Apple Watch", bundle identifier: com.apple.health.EE83959D-D009-4BA0-83A5-2E5A1CC05FE6, localDeviceSource: 0, modification date: 2024-01-31 05:49:18 +0000> Date added: 2025-09-09 20:53:18 +0000 Days between end and add: 1089 It's worth pointing out some differences between the "normal" and "odd" samples (besides the "View All Quantities" button in the Health app). The recreated "odd" samples have a different Source Revision - the "productType" and "operatingSystemVersion" refer to my iPhone, not the Apple Watch device that actually captured the samples. The odd samples also have metadata keys that don't exist in the other samples - HKMetadataKeySyncIdentifier and HKMetadataKeySyncVersion. Questions I'm hoping someone can help with: What are these samples? Why/how do they have a "View All Quantities" button that shows sub-samples? Is this new to iOS 26? Why are some of the samples getting recreated multiple times?
Replies
2
Boosts
0
Views
270
Activity
Sep ’25
Extremely persistent HealthKit read permissions issue
Overview of Issue My implementation of HealthKit is no longer able to read values due to authorization issues (ex. "HealthKitService: Not authorized to read HKQuantityTypeIdentifierHeight. Status: 0"). I have been through every conceivable debugging step including building a minimal project that just requests HealthKit data and the issue has persisted. I've tried my personal as well as Organizational developer teams. My MacOS and Mac Mini. Simulator and personal device. Rechecked entitlements, reprovisioned certificates. This makes no sense. And I have been unable to find anything similar in the Developer forums or documentation. The problem occurs during the onboarding flow when the app requests HealthKit permissions. Even when the user grants permission in the HealthKit authorization sheet, the authorizationStatus for characteristic data types (like Biological s3x and Date of Birth) and quantity data types (like Height and Weight) consistently returns as .sharingDenied. This prevents the app from pre-filling the user's profile with their HealthKit data, forcing them to enter it manually. The issue seems to be environmental rather than a specific code bug, as it has been reproduced in a minimal test case app and persists despite extensive troubleshooting. Minimal test project: https://github.com/ChristopherJones72521/HealthKitTestApp** STEPS TO REPRODUCE Build app, attempt to sign in. No data is imported into the respective fields in the main app. Console logs confirm. PLATFORM AND VERSION iOS Development environment: Xcode Version 16.4 (16F6), macOS 15.5 (24F74) Run-time configuration: iOS 18.5 Relevant Code Snippets Here are the key pieces of code that illustrate the implementation and the problem: 1. Requesting HealthKit Permissions (HealthKitService.swift) This function is called to request authorization for the required HealthKit data types. The typesToRead and typesToWrite are defined in a centralized HealthKitTypes struct. // HealthKitService.swift func requestPermissions(completion: @escaping (Bool, Error?) -&gt; Void) { guard HKHealthStore.isHealthDataAvailable() else { completion(false, HealthKitError.notAvailable) return } let typesToRead: Set&lt;HKObjectType&gt; = [ HKObjectType.characteristicType(forIdentifier: .dateOfBirth)!, HKObjectType.characteristicType(forIdentifier: .biologicals3x)!, HKObjectType.quantityType(forIdentifier: .height)!, HKObjectType.quantityType(forIdentifier: .bodyMass)! ] let typesToWrite: Set&lt;HKSampleType&gt; = [ HKObjectType.workoutType(), HKObjectType.quantityType(forIdentifier: .activeEnergyBurned)! ] healthStore.requestAuthorization(toShare: typesToWrite, read: typesToRead) { success, error in DispatchQueue.main.async { if let error = error { print("HealthKitService: Error requesting authorization: \(error.localizedDescription)") completion(false, error) } else { print("HealthKitService: Authorization request completed. Success: \(success)") completion(success, nil) } } } } 2. Reading Biological s3x (HealthKitService.swift) This function attempts to read the user's biological s3x. The print statements are included to show the authorization status check, which is where the issue is observed. // HealthKitService.swift func readBiologicals3x() async throws -&gt; HKBiologicals3xObject? { guard HKHealthStore.isHealthDataAvailable() else { throw HealthKitError.notAvailable } let s3xAuthStatus = healthStore.authorizationStatus(for: HKObjectType.characteristicType(forIdentifier: .biologicals3x)!) print("HealthKitService: Auth status for Biological s3x: \(s3xAuthStatus.rawValue)") guard s3xAuthStatus == .sharingAuthorized else { print("HealthKitService: Not authorized to read Biological s3x.") throw HealthKitError.notAuthorized } do { return try healthStore.biologicals3x() } catch { print("HealthKitService: Error executing biologicals3x query: \(error.localizedDescription)") throw HealthKitError.queryFailed(error) } } 3. Calling HealthKit Functions During Onboarding (OnboardingFlowView.swift) This is how the HealthKitService is used within the onboarding flow. The requestHealthKitAndPrefillData function is called after the user signs in, and it attempts to read the data to pre-fill the profile form. // OnboardingFlowView.swift func readHealthKitDataAsync() async { print("Attempting to read HealthKit data async...") // ... (calls to HealthKitService.shared.readDateOfBirth(), readHeight(), etc.) do { if let biologicals3xObject = try await HealthKitService.shared.readBiologicals3x() { if self.selectedGender == nil { switch biologicals3xObject.biologicals3x { case .female: self.selectedGender = .female case .male: self.selectedGender = .male case .other: self.selectedGender = .other default: break } } } } catch { print("OnboardingFlowView: Error reading Biological s3x: (error.localizedDescription)") } print("OnboardingFlowView: Finished HealthKit data processing.") } Console Logs Attempting to read HealthKit data async... HealthKitService: Reading Date of Birth... HealthKitService: Current auth status for DOB (during read attempt): 0 HealthKitService: Not authorized to read Date of Birth. Status: 0 OnboardingFlowView: Error reading Date of Birth: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.) HealthKitService: Reading Height... HealthKitService: Current auth status for HKQuantityTypeIdentifierHeight (during read attempt): 0 HealthKitService: Not authorized to read HKQuantityTypeIdentifierHeight. Status: 0 OnboardingFlowView: Error reading Height: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.) HealthKitService: Reading Weight (Body Mass)... HealthKitService: Current auth status for HKQuantityTypeIdentifierBodyMass (during read attempt): 0 HealthKitService: Not authorized to read HKQuantityTypeIdentifierBodyMass. Status: 0 OnboardingFlowView: Error reading Weight: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.) HealthKitService: Pre-read check for Biologicals3x auth status: 1 (Denied) HealthKitService: Reading Biological s3x... HealthKitService: Current auth status for Biological s3x (during read attempt): 1 HealthKitService: Not authorized to read Biological s3x. Status: 1 OnboardingFlowView: Error reading Biological s3x: The operation couldn’t be completed. (Strike_Force.HealthKitError error 2.)
Replies
2
Boosts
0
Views
391
Activity
Sep ’25
Is it possible to get Workout intervals and data from third party app via HealthKit or WorkoutKit?
If a user selects custom structured workout in the apple watch Workout app and records a run with intervals, how can my third party app pull in that data? I can obviously get the workout and health stuff like heart rate, but I cannot find how to save the intervals and the relevant data. The workout events are not seemingly helpful - segments are not obviously related to this. Is it possible? Is it only possible to have the third party app create a customworkout with metadata and then our third party app parses the interval distance/time based on our own structure? I think this stuff should be able to be accessed.
Replies
0
Boosts
0
Views
370
Activity
Aug ’25
UIScene.ConnectionOptions.shouldHandleActiveWorkoutRecovery Missing?
According to the WWDC25 Presentation Track workouts with HealthKit on iOS and iPadOS, there is supposed to be a new property for restoring an active workout after a crash on iOS/iPadOS. The developer documentation also supports this. However, this property does not seem to exist in the latest Xcode 26 beta, even in projects targeting iOS 26.0 as the minimum version. Am I missing something? Has this property not been made available yet? It is actually looking like all of the new iOS 26.0 properties are missing UIScene.ConnectionOptions on my system.
Replies
3
Boosts
0
Views
474
Activity
Aug ’25
Xcode 26 Beta 5 HealthKit DLYD Symbol Crash
I'm having a problem with Xcode 26 where a symbol bug is causing my app to crash at launch if they are running iOS 17.X This has to do with a HealthKit API that was introduced in iOS 18.1 HKQuantityType(.appleSleepingBreathingDisturbances), I use availability clauses to ensure I only support it in that version. This all worked fine with Xcode 16.4 but breaks in Xcode 26. This means ALL my users running iOS 17 will get at launch crashes if this isn't resolved in the Xcode GM seed. I'll post the code here in case I'm doing anything wrong. This, the HealthKit capability, the "HealthKit Privacy - Health Share Usage Description" and "Privacy - Health Update Usage Description", and device/simulator on iOS 17.X are all you need to reproduce the issue. I've made a feedback too as I'm 95% sure it's a bug: FB19727966 import SwiftUI import HealthKit struct ContentView: View { var body: some View { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) Text("Hello, world!") } .padding() .task { print(await requestPermission()) } } } #Preview { ContentView() } func requestPermission() async -> Bool { if #available(iOS 18.0, *) { let healthTypes = [HKQuantityType(.appleSleepingBreathingDisturbances)] var readTypes = healthTypes.map({$0}) let write: Set<HKSampleType> = [] let res: ()? = try? await HKHealthStore().requestAuthorization(toShare: write, read: Set(readTypes)) guard res != nil else { print("requestPermission returned nil") return false } return true } else { return false} }
Replies
1
Boosts
0
Views
775
Activity
Aug ’25
HealthKit Background Delivery and URLSession.shared.dataTask
Hello. I have implemented background delivery for detecting changes in health kit with HKObserverQuery. It works well, I am reading changes. And I am sending this changes to an https endpoint with using an URLSession.shared.dataTask inside the HKObserverQuery callback while my app is terminated. I have several questions about this: Is starting a URLSession.shared.dataTask inside HKObserverQuery callback when app is terminated is correct way to do it? I am calling HKObserverQuery completion handler whatever dataTask returned success or failure but I am wondering what if the network connection is low and this dataTask response could not received in 2-3 seconds. I have read background deliveries should take 1-2 seconds. Should I use an URL session with background configuration for sending those HTTPS requests? If so, should I use download task or upload task (they don't fit my requirements I am sending a simple json)?
Replies
2
Boosts
0
Views
492
Activity
Aug ’25
Health Kit Background Delivery and URLSession.shared.dataTask
Hello. I have implemented background delivery for detecting changes in health kit with HKObserverQuery. It works well, I am reading changes. And I am sending this changes to an https endpoint with using an URLSession.shared.dataTask inside the HKObserverQuery callback while my app is terminated. I have several questions about this: Is starting a URLSession.shared.dataTask inside HKObserverQuery callback is correct way to do it? I am calling HKObserverQuery completion handler whatever dataTask returned success or failure but I am wondering what if the network connection is low and this dataTask response could not received in 2-3 seconds. I have read HealthKit background deliveries should take 1-2 seconds. Should I use background task somehow for sending those HTTPS requests?
Replies
1
Boosts
0
Views
492
Activity
Aug ’25
HealthKit Permission request throws error
Hi guys, We have an app that consumes data from Apple HealthKit. We use an HKObserverQuery to monitor changes in HealthKit data, and occasionally use regular HKSampleQuery requests when the app is in the foreground. Over the past few weeks, we’ve been encountering a significant number of errors when requesting additional HealthKit permissions (beyond what the user has already granted). The error message we’re seeing is: The operation couldn't be completed. (_UIViewServiceInterfaceErrorDomain error 2.) When this error occurs, all previously granted HealthKit permissions are automatically revoked, which is highly disruptive. We have a few questions and would greatly appreciate any insights or explanations regarding this behavior: Could this error occur if a permission request is triggered right as the app moves to the background? Why would previously granted permissions be revoked automatically after this error? If this is due to some internal behavior in iOS (e.g., a system-level protection or timeout), is there any known workaround or best practice to prevent this from happening? Thanks in advance for your help!
Replies
2
Boosts
0
Views
176
Activity
Jul ’25
Apple HealthKit Integration - Need help with sleep data
Looking for help with our Apple HealthKit integration. We've successfully pulled steps, distance, active energy, glucose and heart rate. However, the data pulled for sleep duration is incorrect. Not sure what we're doing wrong.
Replies
4
Boosts
0
Views
343
Activity
Jul ’25
Support for cycling power & cadence sensors in HKWorkoutSession on iOS?
Hi everyone, while testing HKWorkoutSession with HKLiveWorkoutBuilder on iOS 26 Beta (cycling workout), I noticed the following behavior: – Starting a cycling HKWorkoutSession automatically connects to my Bluetooth heart rate monitor and records HR into HealthKit ✅ – However, my Bluetooth cycling power meter and cadence sensor (standard BLE Cycling Power & CSC services) are not connected automatically, and no data is recorded into HealthKit ❌ On Apple Watch, when starting a cycling workout, these sensors do connect automatically and their data is written to HealthKit — which is exactly what I would expect on iOS as well. Question: Is this by design, or is support for power and cadence sensors planned for iOS in the same way as on watchOS? Or do we, as developers, need to implement the BLE Cycling Power and CSC profiles ourselves (via CoreBluetooth) if we want these metrics? Environment: – iOS 26 Beta – HKWorkoutSession & HKLiveWorkoutBuilder (cycling) – Bluetooth HRM connects automatically – BLE power & cadence sensors do not This feature would make it much easier to develop cycling apps with full HealthKit integration, and also create a more consistent user experience compared to watchOS. Thanks for any insights!
Replies
2
Boosts
1
Views
699
Activity
Jul ’25
Apple Health Kit - Send Custom Workout
Hello, What is the best practice for sending customized workouts to the Apple Watch. For example, sending a running workout that entails: Run 1 mile at 8:00/mile Walk 2 minutes Run 2 mile at 7:00/mile ---- Walk 2 minutes ---- Repeat 2x Run 1 mile at 8:00/mile Any documentation or sample codes would be amazing. Thank you
Replies
0
Boosts
0
Views
259
Activity
Jul ’25
HKLiveWorkoutBuilder get wrong calorie data for iOS 26
In iOS 26, HKLiveWorkoutBuilder is supported, which we can use like HKWorkoutSession in watchOS - this is very exciting. However, it currently seems to have a bug in calculating calories. I tested it in my app, and for nearly 6 minutes with an average heart rate of 134, it only calculated 8 calories consumed (80 calories per hour), including basal consumption, which is obviously incorrect. (I used Powerboats Pro 2 connected to my phone, which includes heart rate data, and HKLiveWorkoutBuilder correctly collected the heart rate, which is great.) I think my code is correct. func workoutBuilder(_ workoutBuilder: HKLiveWorkoutBuilder, didCollectDataOf collectedTypes: Set<HKSampleType>) { for type in collectedTypes { guard let quantityType = type as? HKQuantityType else { return // Nothing to do. } let statistics = workoutBuilder.statistics(for: quantityType) if let statistics = statistics { switch statistics.quantityType { case HKQuantityType.quantityType(forIdentifier: .heartRate): /// - Tag: SetLabel let heartRateUnit = HKUnit.count().unitDivided(by: HKUnit.minute()) let value = statistics.mostRecentQuantity()?.doubleValue(for: heartRateUnit) let roundedValue = Double( round( 1 * value! ) / 1 ) if let avg = statistics.averageQuantity()?.doubleValue(for: heartRateUnit) { self.avgHeartRate = avg } self.delegate?.didUpdateHeartBeat(self, heartBeat: Int(roundedValue)) case HKQuantityType.quantityType(forIdentifier: .activeEnergyBurned): let energyUnit = HKUnit.kilocalorie() let value = statistics.sumQuantity()?.doubleValue(for: energyUnit) self.totalActiveEnergyBurned = Double(value!) print("didUpdate totalActiveEnergyBurned: \(self.totalActiveEnergyBurned)") self.delegate?.didUpdateEnergyBurned(self, totalEnergy: self.totalActiveEnergyBurned + self.totalBasalEneryBurned) return case HKQuantityType.quantityType(forIdentifier: .basalEnergyBurned): let energyUnit = HKUnit.kilocalorie() let value = statistics.sumQuantity()?.doubleValue(for: energyUnit) self.totalBasalEneryBurned = Double(value!) print("didUpdate totalBasalEneryBurned: \(self.totalBasalEneryBurned)") self.delegate?.didUpdateEnergyBurned(self, totalEnergy: self.totalActiveEnergyBurned + self.totalBasalEneryBurned) return default: print("unhandled quantityType=\(statistics.quantityType) when processing statistics") return } } I think I've found the source of the problem: let workoutConfiguration = HKWorkoutConfiguration() workoutConfiguration.activityType = .traditionalStrengthTraining //walking, running is ok workoutConfiguration.locationType = .outdoor When I set the activityType to walking or running, the calorie results are correct, showing several hundred calories per hour. However, when activityType is set to traditionalStrengthTraining or jumprope, the calculations are incorrect. PS: I'm currently using Xcode 26 beta3 and iOS 26 beta3. Hope this issue can be resolved. Thanks.
Replies
1
Boosts
0
Views
445
Activity
Jul ’25
Adding workoutEffortScore to HKWorkout
I'm trying to hook into the new workoutEffort score supported in iOS 18, I am collecting this information from users when they submit their workout and trying to add a sample to the HKWorkout in the same manner as I've been adding other samples like bodyweight, calories burned, etc. I'm receiving the error: HKWorkout: Sample of type HKQuantityTypeIdentifierWorkoutEffortScore must be related to a workout I tried adding the samples using HKWorkoutBuilder.add([samples]) as which has been working perfectly for calories burned & bodyweight, but I am receiving the above error for workoutEffortScore As a second approach, I tried adding the sample after I called finishWorkout on the HKWorkoutBuilder and received back the HKWorkout object using HKHealthStore.add([samples], to: HKWorkout) and am still receiving the same error! I don't know otherwise how to relate a sample to a workout, I thought those were the APIs to do so? I'm using Xcode 16.0 RC (16A242) and testing on an iOS 16 Pro simulator
Replies
5
Boosts
1
Views
1.9k
Activity
Jul ’25
HealthKit - HKWorkoutRouteBuilder never returns from insert when created from newly added iOS HKLiveWorkoutBuilder API on Simulator
Has anyone had success using the HKWorkoutRouteBuilder in conjunction with the new iOS support for HKLiveWorkoutBuilder? I was running my watchOS code that worked now brought over to iOS and when I call insertRouteData the function never returns. This happens for both the legacy and closure based block patterns. private var workoutSession: HKWorkoutSession? private var workoutBuilder: HKLiveWorkoutBuilder? private var serviceSession: CLServiceSession? private var workoutRouteBuilder: HKWorkoutRouteBuilder? private func startRouteBuilder() { Task { @MainActor in self.serviceSession = CLServiceSession(authorization: .whenInUse) self.workoutRouteBuilder = self.workoutBuilder?.seriesBuilder(for: .workoutRoute()) as? HKWorkoutRouteBuilder self.locationUpdateTask = Task { do { for try await update in CLLocationUpdate.liveUpdates(.fitness) { if let location = update.location { self.logger.notice(#function, metadata: [ "location": .stringConvertible(location) ]) try await self.workoutRouteBuilder?.insertRouteData([location]) self.logger.notice("Added location") } } } catch { self.logger.error(#function, metadata: [ "error": .stringConvertible(error.localizedDescription) ]) } } } } I did also try CLLocationManager API with delegate which is what my current watch code uses (a bit old). Same issue. Here is what I've found so far: If the workout session is not running, and if the builder hasn't started collection yet, inserting route data works just fine I've tried different swift language modes, flipped from main actor to non isolated project settings (Xcode 26) Modified Apple's sample code and added location route building to that and reproduced the error, modified sample attached to feedback This issue was identified against Xcode 26 beta 2 and iPhone 16 Pro simulator. Works as expected on my iPhone 13 Pro beta 2. FB18603581 - HealthKit: HKWorkoutRouteBuilder insert call within CLLocationUpdate task never returns
Replies
0
Boosts
0
Views
384
Activity
Jul ’25
Incorrect Step Count from Apple HealthKit Data
Hi, i'm trying to get the number of step counts a person has taken. I decided to pull the data from health kit and the number of steps are incorrect. Come to find out apple health recommends an app called pedometer++ for the number of steps counted and after testing I realized that they are getting the correct number of steps a person is taking. How can I pull the correct number of steps a person has taken? I want to be able to merge the data from watch and phone to make sure we are getting the correct number of steps but not double counting the steps either. any guidance on this would be appreciated! Here's the code snippet that i'm using right now: permissions: { read: [AppleHealthKit.Constants.Permissions.StepCount], write: [], }, }; AppleHealthKit.initHealthKit(permissions, error => { if (error) { console.log('Error initializing HealthKit: ', error); return; } else { dispatch(setAllowHealthKit(true)); getHealthKitData(); console.log('HealthKit initialized successfully'); } }); const getHealthKitData = async () => { try { const today = new Date(); const options = { startDate: new Date(today.setHours(0, 0, 0, 0)).toISOString(), endDate: new Date().toISOString(), }; const steps = await new Promise((resolve, reject) => { AppleHealthKit.getStepCount(options, (error, results) => { if (error) reject(error); resolve(results?.value); }); }); setStepsCount(steps); } catch (error) { console.error('Error fetching HealthKit data:', error); } };
Replies
6
Boosts
0
Views
607
Activity
Jul ’25