I want to know , how many days will the data of health stays in apple watch . For example, I have not synced the watch with iPhone for two weeks . Then When I synced it , I am only able to see the last week data on iPhone of the watch . Is it true ?

Hi everyone, I'm building a health-focused iOS and watchOS app that uses WatchConnectivity to sync real-time heart rate and core body temperature data from iPhone to Apple Watch. While the HealthKit integration works correctly on the iPhone side, I'm facing persistent issues with WatchConnectivity — the data either doesn't arrive on the Watch, or session(_:didReceiveMessage:) never gets triggered. Here's the setup: On iPhone: Using WCSession.default.sendMessage(_:replyHandler:errorHandler:) to send real-time values every few seconds. On Apple Watch: Implemented WCSessionDelegate, and session(_:didReceiveMessage:) is supposed to update the UI. Both apps have WCSession.isSupported() checks, activate the session, and assign delegates correctly. The session state shows isPaired = true and isWatchAppInstalled = true. Bluetooth and Wi-Fi are on, both devices are unlocked and nearby. Despite all this, the Watch never receives messages in real-time. Sometimes, data comes through in bulk much later or not at all. I've double-checked Info.plist configurations and made sure background modes include "Uses Bluetooth LE accessories" and "Background fetch" where appropriate. I would really appreciate guidance on: Best practices for reliable, low-latency message delivery with WatchConnectivity. Debugging steps or sample code to validate message transmission and reception. Any pitfalls related to UI updates from the delegate method. Happy to share further details. Thanks in advance!

Hello everyone, my app is designed to help people sleep. It has been rejected multiple times due to issues with version 1.4.1 during the submission process. However, the app simply evaluates users’ insomnia and anxiety status based on their responses to questions and provides some relaxation methods. It does not involve any medical-related content. The reviewer provided screenshots of the assessment results page and some relaxation techniques. How should I handle this issue?

Hello everyone, my app is designed to help people sleep. It has been rejected multiple times due to issues with version 1.4.1 during the submission process. However, the app simply evaluates users’ insomnia and anxiety status based on their responses to questions and provides some relaxation methods. It does not involve any medical-related content. The reviewer provided screenshots of the assessment results page and some relaxation techniques. How should I handle this issue?

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

I'm using following filters to fetch swimming activities from HealthKit. For some users it fetches all workouts (pool && open water) but for other it skips some open water activities. See screenshot, all those swimming activities are not fetched by following code. let startDate = Calendar.current.date(byAdding: .month, value: -1, to: Date())! let endDate = Date() let swimmingPredicate = HKQuery.predicateForWorkouts(with: .swimming) let timePredicate = HKQuery.predicateForSamples(withStart: startDate, end: endDate, options: .strictStartDate) let predicate = NSCompoundPredicate(andPredicateWithSubpredicates: [swimmingPredicate, timePredicate]) let query = HKSampleQuery(sampleType: .workoutType(), predicate: predicate, limit: HKObjectQueryNoLimit, sortDescriptors: [.init(keyPath: \HKSample.startDate, ascending: false)], resultsHandler: { [weak self] query, samples, error in ... Could someone help with ideads what is missing in this case?

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.

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

Hello everyone, Ujjwal here, founder and CEO of a new iOS app in the mental wellness space. Our mission is to provide accessible, AI-driven support for individuals dealing with anxiety, depression, and loneliness. From the very beginning, this has presented us with a unique and critical challenge: How do we effectively market an app to reach those who need it most, while upholding the absolute highest standards of user privacy? We've built our app, ThunDroid, with a "privacy-by-design" philosophy. We leverage on-device processing for our core AI features, utilize end-to-end encryption, and have proudly integrated 'Sign in with Apple' to maximize user anonymity. We believe these are not just features, but ethical obligations to our users, especially given the nature of the data they trust us with. The challenge, however, arises in marketing. This leads us to focus on mission-driven, organic marketing, but it's a slower path to reaching users who might be in immediate need of support. This brings me to my question for this knowledgeable community. What best practices or creative strategies have you found effective for marketing applications? I appreciate any insights or experiences you're willing to share as we continue to grow ThunDroid responsibly. Thank you for your time and consideration. App Store link: (would love to hear your reviews) [https://apps.apple.com/in/app/thundroid-ai-human-companion/id6746182736)

Hello, In my application, I need to obtain precise workout segment data from HKWorkout in order to calculate per-kilometer metrics such as heart rate and pace. My current approach is: 1.Use HKWorkout to fetch the associated HKWorkoutEvents. 2.Take the end time of one event as the start time of the next event to derive per-kilometer segment ranges. The issue I’m facing: •If a user sets Apple Watch to notify every 5 kilometers, then at 5 km, 10 km, 15 km, etc., I see overlapping event times. •From the HKWorkoutEvents data alone, I cannot distinguish between events that represent “per-kilometer splits” and those that represent “5-kilometer notifications.” •As a result, my per-kilometer heart rate and pace calculations can be inaccurate. My question is: Is there a recommended way to reliably differentiate per-kilometer splits from custom distance notifications and ensure accurate segment data retrieval? For example, should I instead reconstruct segments using HKWorkoutRoute and distance samples, rather than relying on HKWorkoutEvents? STEPS TO REPRODUCE 1.On Apple Watch, start an Outdoor Run using the Workout app. 2.In workout notifications, set distance alerts to every 5 kilometers. 3.During the run, when reaching 5 km, 10 km, 15 km, etc., the watch triggers notifications. 4.Query the corresponding HKWorkout from HealthKit and inspect its HKWorkoutEvents. 5.Notice that some event start times are duplicated, and it is unclear which events represent “per-kilometer splits” and which represent “5-kilometer notifications.” Expected Result: Be able to differentiate between per-kilometer splits and custom distance alerts, so that heart rate and pace per kilometer can be calculated accurately. Actual Result: The HKWorkoutEvents data contains duplicated event times without a way to distinguish event types, leading to inaccurate per-kilometer statistics.

I have an iPhone 11 Pro Max running iOS 26. But since iOS 18, Apple decided to remove the "Time in Bed" feature[1][2]. Is it possible to develop an app that, effectively, "brings back" this feature? It doesn't have to be that accurate. Just a gauge is fine. As a starter I would like to track the time the phone was in Sleep mode (regardless whether the phone is being used). I have a minimal programming background but have not developed an iOS app before so any help would be appreciated. I found out about HealthKit[3] which lets me access (edit?) Health data, but I don't know where to go from there. [1] https://www.reddit.com/r/iOSBeta/comments/1em8bl6/ios_181_db1_time_in_bed_via_iphone_feature_removed [2] https://www.reddit.com/r/ios/comments/1fkjat4/apple_removed_the_iphoneonly_sleep_tracking [3] https://developer.apple.com/documentation/healthkit

Summary: Expanding HealthKit to support the full spectrum of smart scale metrics will allow Apple Health to remain the central hub for health data, align with user expectations, and future-proof the framework as body composition analysis evolves. Description: With the growing adoption of smart body composition scales (e.g. segmental impedance scanners, multi-frequency analyzers, and body pods), users are generating a wide variety of clinically relevant metrics that currently cannot be stored natively in HealthKit. At present, HealthKit supports a core set of body composition values (Body Mass, BMI, Body Fat %, Lean Mass, Height, Waist Circumference). While useful, these do not capture the full picture modern devices provide, leading to fragmentation: • Users can see dozens of metrics in the device app, but only a handful flow into Health. • Developers must resort to metadata fields, which are inconsistent across apps and not accessible in Apple’s Health app UI. This gap undermines HealthKit’s role as a central, standardized health record. ⸻ Proposed Additions: Expand HealthKit HKQuantityTypeIdentifier to include additional body composition and derived measurements commonly reported by smart scales: Core Body Composition • Visceral fat percentage / rating • Skeletal muscle mass • Segmental muscle mass (arms, legs, trunk) • Segmental fat mass (arms, legs, trunk) • Bone mineral mass • Total body water % / hydration Derived Health Metrics • Muscle-to-fat ratio • Phase angle (bioelectrical impedance) • Metabolic age • Basal metabolic rate (BMR) ⸻ Rationale: • User benefit: Health app would show a more complete health profile, not just weight and fat %. • Developer benefit: Creates standardized identifiers, eliminating the need for proprietary storage in metadata. • Industry alignment: Many leading health devices already provide these metrics; users expect them to sync into Health. • Future-proofing: As body scanning scales proliferate, HealthKit can remain the trusted central repository rather than ceding ground to siloed vendor apps. ⸻ Suggested Implementation: • Introduce new HKQuantityTypeIdentifier values for each metric. • Permit segmental values to be represented as discrete samples with metadata for body region. • Ensure values can be written by apps/devices and surfaced in Health app UI, just like existing body composition data.

Hello, I’m developing a HealthKit-based fitness app in React Native that observes step count changes and uploads the latest totals to a remote server. I’m currently using HKObserverQuery with background delivery enabled (enableBackgroundDelivery(for:frequency:.immediate)), and the behavior works correctly while the app is running in the background or foreground. Whenever new step data is written to HealthKit, the app wakes up, reads the latest data, and sends it to my HTTPS endpoint using URLSession.shared.dataTask inside the observer callback. However, I’ve noticed the following issue: 1. If the user swipes up (force-quits) the app from the app switcher, the observer queries stop firing entirely. 2. In this state, even though HealthKit continues collecting step data from the device or Apple Watch, my app no longer receives those background deliveries until the user opens the app again. What I would like to achieve is: When the app is terminated (swiped up), and there are new step count updates in HealthKit, my app should still be able to receive those updates or be relaunched to handle them — similar to how some health companion apps continue syncing data and sending notifications even after being force-quit. So I have a few questions: Is this limitation expected — i.e., does iOS intentionally block HKObserverQuery background deliveries after a user force-quits the app? 2. Are there any special entitlements, background modes, or Apple-approved mechanisms that allow a health or medical app to continue receiving HealthKit changes even after a force-quit? 3. If not, what is the recommended architecture for apps that need to process HealthKit data continuously and send it to a backend server? For example, should such apps rely on server-side push notifications or CloudKit sync once the user reopens the app? My current goal is to ensure step count changes are uploaded reliably even if the app is killed, but I want to stay within the system’s supported behaviors and privacy constraints. Any clarification or guidance from Apple engineers or others who have implemented continuous HealthKit sync (like companion or medical apps) would be greatly appreciated. Thank you.

Hi everyone, I’m building a health app with React Native using Expo Dev Client on a real iPhone. I need to read Apple Health (HealthKit) data, but the authorization sheet never appears—so the app never gets permissions and all queries return nothing. What I’ve already done Enabled HealthKit capability for the iOS target. Added NSHealthShareUsageDescription and NSHealthUpdateUsageDescription to Info.plist. Using a custom dev build (not Expo Go). Tested fresh installs (deleted the app), rebooted device, and checked Settings → Privacy & Security → Health/Motion & Fitness. Tried both packages: react-native-health and @kingstinct/react-native-healthkit. Same behavior: no permission dialog at first use. Ask Is there a known reason why the HealthKit permission sheet would not show on modern iOS when called from a React Native bridge (with Expo Dev Client)? Are there any extra entitlements, signing, or config-plugin steps required beyond HealthKit capability + Info.plist? If you’re successfully fetching Apple Health data from React Native on recent iOS, could you share the exact steps that made the permission sheet appear and data flow (Expo config/plugin used, Xcode capability setup, profile/team settings, build type, bundle ID nuances, any Health app reset steps, etc.)? This would help me and others hitting the same “authorized call but no prompt/no data” issue. Thank you!

I am working on a cycling fitness app and I want to read the cycling power recorded using my Garmin edge from the Garmin Connect App. Currently the data is not transferred to the Health/Fitness Apps. Ideally it would be good to be able to query the power samples similar to the heart rate samples, but even the average power would suffice, as I could then calculate the Kilojoules.

I am developing a running training app that coaches can use to create interval workout plans. I can use HKWorkout to get information about Splits similar to that in Fitness app, but I can't get information about Intervals. My idea is to show interval details when users view their completed custom interval workout plans. Can I use Healthkit (or another feasible method) to get the actual distance or time of exercise in intervals workout ? (I know the workoutPlan property, but it doesn't reflect the segments of a real interval training workout.) Any insights or suggestions would be greatly appreciated! Thanks in advance!

Hi! I have over 800 days strike in closing my move circle. However oerfect month badge is not popping up for November, we have now mid of Dec and still no update. I updated iOS to 26, did multiple resets and hard resets and still no badge. I checked many forums and post but any of given tips is working in my case. i know it sounds funny, but it’s frustrating that I’m not getting this little gold medal to keep me motivated 😅 does anyone know how to deal with it? Is it common issue?

Hi all, I'm developing fitness app and I use healthkit to track user's "STEPS" count and "Heart Rate" 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. How I tried to Resolve the Issue I have modified my app: adding user permission prompt, adding healthkit notification, adding healthkit indicator in the UI **1. Added a "Permission Primer" Screen (Pre-Alert) ** When a user taps "Connect Apple Health," they are now shown a dedicated explanation screen before the system permission prompt appears. This screen clearly states: "[App] integrates with HealthKit to read your Heart Rate and Steps... to calculate physical exertion." (Please see the "Connect" flow in the Session Detail view). **2. Added Explicit Source Attribution ** I have added a permanent text label reading "Health data sourced from Apple Health" directly below the heart rate and steps statistics on the Session Detail dashboard. This ensures that users always identify the source of the displayed metrics. 3. Deployment Target Correction I identified a configuration error where the Deployment Target was set to a future OS version. I have corrected this to the currently shipping iOS 18 to ensure full compliance with software requirements. 4. App Description Update I have updated the App Store description to explicitly mention the HealthKit integration and its specific purpose (tracking match intensity). However doing the above, I still continue to receive the same review 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!

Hello Apple Developer Community, I'm developing a cross-platform app using Flutter and the flutter_beacon library to handle iBeacon detection on iOS. My goal is to wake up the app in the background when it's in a killed/terminated state upon entering/exiting beacon regions, allowing for BLE communication (e.g., ranging or connecting to beacons). I've configured the necessary Info.plist keys for always location access and background location modes, and it works partially for single regions, but I have some specific questions/issues regarding reliability and limitations: Background Execution Time After Wake-Up: When the app is woken in the background by a region monitoring event (enter/exit) from a killed state, approximately how much time (in seconds) does iOS allocate for the app to run before suspending it again? Is this sufficient for performing BLE operations like ranging beacons or establishing a short connection, or are there stricter limits in terminated wake-ups compared to standard background modes? Monitoring Multiple iBeacons with Unique Identifiers: I need to monitor multiple iBeacon devices, each with potentially different UUIDs, majors, and minors. Can I add and monitor up to 20 regions simultaneously, each with a unique string identifier? If multiple beacons (from different regions) enter their respective ranges at around the same time, will the app receive separate callbacks for each region/identifier, or is there coalescing/prioritization that might cause only the last-added identifier to trigger notifications/events? Reliability in Killed State: In a fully killed state (e.g., force-quit via app switcher), does iOS reliably relaunch the app in the background for region monitoring events? Are there any known caveats, such as requiring specific hardware (e.g., iPhone models with certain Bluetooth chips) or iOS versions (targeting iOS 14+), and how does this interact with Flutter's background execution handling via the flutter_beacon library?