Prioritize user privacy and data security in your app. Discuss best practices for data handling, user consent, and security measures to protect user information.

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Password AutoFill does not pick up saved password in developer mode
Without developer mode, I was able to get Password AutoFill to work in my SwiftUI app with my local Vapor server using ngrok and adding the Associated Domains capability with the value webcredentials:....ngrok-free.app and the respective apple-app-site-association file on my local server in /.well-known/. (works on device, but not in the simulator). However, if I use the developer mode (webcredentials:....ngrok-free.app?mode=developer) it only works halfway when running from Xcode: I get asked to save the password, but the saved passwords are not picked up, when I try to login again. Neither on device, nor in the simulator. If I remove the ?mode=developer it seems to work as expected. Is this by design, or am I missing something? var body: some View { ... Section(header: Text("Email")) { TextField("Email", text: $viewModel.credentials.username) .textContentType(.username) .autocapitalization(.none) .keyboardType(.emailAddress) } Section(header: Text("Passwort")) { SecureField("Passwort", text: $viewModel.credentials.password) .textContentType(.password) } ... }
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202
May ’25
Transfer of an App with Sign in with Apple Functionality
Hello, I currently have an app that includes the "Sign in with Apple" feature, and I need to transfer this app to another app team. I have reviewed all official documentation but have not found the answer I need. My situation has some specificities, and I hope to receive assistance. The .p8 key created by the original developer team has been lost, and the app’s backend does not use a .p8 key for verification—instead, it verifies by obtaining Apple’s public key. However, according to the official documentation I reviewed, obtaining a transfer identifier during the app transfer process requires a client_secret generated from the original team’s .p8 key. This has left us facing a challenge, and we have two potential approaches to address this issue: Q1: During the transfer, is it possible to skip obtaining the transfer identifier and proceed directly with the app transfer, without performing any backend operations? Is this approach feasible? Q2: If the above approach is not feasible, should we create a new .p8 key in the original team’s account and use this new key for the transfer? If a new key is generated, do we need to re-release a new version of the app before initiating the transfer? If neither of the above approaches is feasible, are there better solutions to resolve our issue? I hope to receive a response. Thank you. TN3159: Migrating Sign in with Apple users for an app transfer | Apple Developer Documentation/ https://developer.apple.com/documentation/signinwithapple/transferring-your-apps-and-users-to-another-team
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77
Oct ’25
Swift program to send Push Notifications
Is there a step by step program on Sending Push notifications? I seem to be stuck at load private key. I get this error. SecKeyCreateWithData failed with error: Error Domain=NSOSStatusErrorDomain Code=-50 "EC private key creation from data failed" It is a new p8 file. I tried different format. I read some articles that say that there is a bug I think. I don't know for sure because it was written in jibberish. 90% of the code is dealing with these stupid keys. This should be 1 function setting the pipe and then I can use the pipe. This is ridiculous. If anybody has any ideas. The code is a mess because I tried so many different ideas. Push Notification.txt
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Jan ’25
Sign In by Apple on Firebase - 503 Service Temporarily Unavailable
Hello everyone, I'm encountering a persistent 503 Server Temporarily Not Available error when trying to implement "Sign in with Apple" for my web application. I've already performed a full review of my configuration and I'm confident it's set up correctly, which makes this server-side error particularly confusing. Problem Description: Our web application uses Firebase Authentication to handle the "Sign in with Apple" flow. When a user clicks the sign-in button, they are correctly redirected to the appleid.apple.com authorization page. However, instead of seeing the login prompt, the page immediately displays a 503 Server Temporarily Not Available error. This is the redirect URL being generated (with the state parameter truncated for security): https://appleid.apple.com/auth/authorize?response_type=code&client_id=XXXXXX&redirect_uri=https%3A%2F%2FXXXXXX.firebaseapp.com%2F__%2Fauth%2Fhandler&state=AMbdmDk...&scope=email%20name&response_mode=form_post Troubleshooting Steps Performed: Initially, I was receiving an invalid_client error, which prompted me to meticulously verify every part of my setup. I have confirmed the following: App ID Configuration: The "Sign in with Apple" capability is enabled for our primary App ID. Services ID Configuration: We have a Services ID configured specifically for this. The "Sign in with Apple" feature is enabled on this Services ID. The domain is registered and verified under "Domains and Subdomains". Firebase Settings Match Apple Settings: The Services ID from Apple is used as the Client ID in our Firebase configuration. The Team ID is correct. We have generated a private key, and both the Key ID and the .p8 file have been correctly uploaded to Firebase. The key is not revoked in the Apple Developer portal. Since the redirect to Apple is happening with the correct client_id and redirect_uri, and the error is a 5xx server error (not a 4xx client error like invalid_client), I believe our configuration is correct and the issue might be on Apple's end. This has been happening consistently for some time. My Questions: What could be causing a persistent 503 Server Temporarily Not Available error on the /auth/authorize endpoint when all client-side configurations appear to be correct? What is the formal process for opening a technical support ticket (TSI) directly with Apple Developer Support for an issue like this? Thank you for any insights or help you can provide.
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357
Sep ’25
OAuth SignIn - Invalid Grant
Hi, I followed step by step documentation to implement SignIn with Apple in iOS/Android application. I created an AppId com.nhp.queenergy, a related ServiceId com.nhp.queenergy.apple, and a KeyId. Authorization request is correctly performed by using ServiceId as client_id and my backend redirect_uri I receive code on my backend Token request is performed by using ServiceId as client_id, same redirect_uri, the code I have just received and the client_secret as JWT signed with my .p8 certificate with the following decoded structure Header { "kid": , "typ": "JWT", "alg": "ES256" } Payload { "iss": , "sub": "com.nhp.queenergy.apple", "aud": "https://appleid.apple.com", "exp": 1756113744, "iat": 1756111944 } I always receive "invalid_grant" error without any further error description. Moreover the error is always the same even though I use any fake string as client secret. If the code expires, as expected the error changes by adding "The code has expired or has been revoked." I really don't know how to solve this issue Best regards
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626
Aug ’25
Guidance on Building a Custom Referral Attribution System for iOS
Hello, I’m planning to develop a custom referral-based attribution system for my app. The goal is to log the number of installs that come from unique referral links and then track subsequent in‑app analytics (for example, when a user reaches level 5 in a game). I’d also like to capture the user’s country to further segment these analytics. I want to build this system myself—without relying on third‑party services (such as AppsFlyer or Branch) since I only need a few key data points and want to keep costs low. However, I’m aware of the privacy restrictions in iOS and want to ensure that my implementation complies with Apple’s guidelines. Specifically, I would appreciate guidance on the following: Permissible Signals: Is it acceptable to log signals like IP address (or a suitably anonymized version), device model, and timestamp to help correlate the referral click to a successful install and subsequent in‑app events? Are there any other recommended non‑PII signals that can be used to confirm a referral install without risking rejection during App Review? Best Practices: What are the best practices for handling and transmitting these signals (e.g., should IP addresses be truncated or hashed)? How can I ensure that my system remains compliant with Apple’s App Tracking Transparency and other privacy guidelines? I’d appreciate any insights or references to relevant documentation that might help me build this system without getting rejected by Apple. Thank you in advance for your assistance!
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179
Mar ’25
Sudden Increase of Hard Bounce with privaterelay emails
We have been sending emails through Sparkpost via Braze inc. to the Apple Private Relay users with "@privaterelay.appleid.com" starting from around June 20th or so. Upon August 9th 06:00 UTC, we have noticed a sudden increase of "Hard Bounce" for nearly 20,000 users using the Apple's private relay email address, rendering the email sending useless for these customers. We have been constantly been able to send them emails, including just before this timeframe (e.g. August 9th 03:00 UTC), so it was a very sudden purge of the user data that has been done without our consent. From a business perspective, this hurts a lot for the un-sendable users since we have no way of contacting them if not for the private address. We are desperate to know what has happened for these customers that has been "hard bounced". We are suspecting that it should be tied to the private email and the users primary email (or user data's) tie in the Apple server being gone, but not sure enough since there is no such documentation nor any way to acknowledge what has happened anywhere. We will provide any information possible for resolving. Thank you.
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316
Aug ’25
Sign in with Apple Sync Issues Across Teams
We have 2 developers: Developer A created a Bundle ID and configured Sign in with Apple, but didn't create a corresponding App. This Bundle ID is only used for login on our official website. Developer B created a Bundle ID, configured Sign in with Apple, and has a corresponding App. The issue we're encountering is that because these two Bundle IDs are under different teams, when using the same Apple ID to log into these two applications, different accounts are generated. (We've tested that when creating Service IDs under the same team, logging in with Bundle IDs under the same team generates the same account.) Since Developer A's Bundle ID doesn't have a created app, it cannot be transferred to Developer B. Therefore, we'd like to know if there's any way to make the accounts generated from logging in with the same Apple ID be identical across these two teams?
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397
Feb ’25
Received email that my Sign in with Apple account was rejected
I set up "Sign in with Apple" via REST API according to the documentation. I can log in on my website and everything looks fine for the user. But I receive an email, that my "Sign in with Apple" account has been rejected by my own website. It states, I will have to re-submit my name and email address the next time I log in to this website. I don't see any error messages, no log entries, no HTTP errors anywhere. I also can't find anything in the docs, the emails seem to not be mentioned there, searching for anything with "rejected" in the forum did not yield any helpful result, because they are always about App entries being rejected etc. Did someone experience something similar yet? What's the reason, I'm getting these emails? I get them every time I go through the "Sign in with Apple" flow on my website again.
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275
Aug ’25
Questions about Apple login authorization data behavior during App transfer
After the App transfer is initiated, will the replacement of the old and new certificates affect user authorization? (Based on some replies from DTS on the forum [Apple login authorization data is generated in combination with the team ID to which the App currently belongs], it is speculated that after the App transfer, during the period when the certificate configuration of the new team ID is not completed, authorization or authentication may not be performed normally, resulting in users being unable to use the Apple login function normally) During the 60-day migration period, if the user authorizes or cancels authorization and then authorizes again in the old app, will the authorized data be different? If so, will transfer_sub be included in the authorization operation?
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116
Mar ’25
SmartCard Pairing with PIN for user and prompted for a Password authentication for keychain access app
During SmartCard pairing the PIN prompt enables the OK button only on user provides a PIN of 6 digits. Is there a way to submit the empty PIN in this flow, where the custom CTK is used here (the custom CTK would take care of the PIN from the custom ctk code). I was able to do an empty PIN submit once the I've paired the user successfully at login, unlock and other cli tools. Is there a way to do the same during the pairing? Once the user has successfully paired with the SmartCard authentication with PIN, I was able to see most of the authentication flows was prompting for the PIN authentication like login, unlock, CLI tools like ssh, su etc., perhaps at few apps where it is still prompted with the Password instead of PIN examples, when I tried to launch Keychain Access app or Add a user from users&groups system setting. Is this expected behaviour?
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374
Feb ’25
App Tracking Transparency - Pre-Modal Explanation
Hi, I hope someone is able to help me with this query: Is there a mandatory requirement to display a view before presenting the App Tracking Transparency modal to explain to the user why the app is asking for tracking? I see there are a few apps which do this, but I don't see any mention of this as a mandatory requirement within the app store review guidelines. The modal can be customised with a description detailing why the app is asking for tracking and I believe this may be sufficient to pass an app store review. The guidelines also mention that the app must provide access to information about how and where the data will be used. We have these details in our privacy policy which is accessible from within the app. Is this sufficient or do we need a pre-modal view which contains a direct link the the privacy policy. Any advice on this would be much appreciated.
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406
Feb ’25
Phone heating problem after update iOS 26.0 (23A5297m)
As I had mentioned earlier, I was facing two issues after the initial update, but I’m happy to inform you that both of those issues have now been resolved. However, after updating to iOS 26.0 (23A5297m), I’ve started experiencing a new issue related to overheating. Since yesterday, my iPhone has been getting extremely hot while charging. It also became very hot after clicking just a few photos. The same heating issue occurred again today during charging. This problem only started after the latest update. Kindly look into this issue and advise on how to resolve it.
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86
Jul ’25
Privacy Resources
General: Forums topic: Privacy & Security Forums tag: Privacy Developer > Security — This also covers privacy topics. App privacy details on the App Store UIKit > Protecting the User’s Privacy documentation Bundle Resources > Privacy manifest files documentation TN3181 Debugging an invalid privacy manifest technote TN3182 Adding privacy tracking keys to your privacy manifest technote TN3183 Adding required reason API entries to your privacy manifest technote TN3184 Adding data collection details to your privacy manifest technote TN3179 Understanding local network privacy technote Handling ITMS-91061: Missing privacy manifest forums post Share and Enjoy — Quinn “The Eskimo!” @ Developer Technical Support @ Apple let myEmail = "eskimo" + "1" + "@" + "apple.com"
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166
Jul ’25
why prepareInterfaceToProvideCredential does call
we develop extension "Autofill Credential Provider" function for passkey. 1.first step registe passkey 2.second step authenticate with passkey step 1 & step 2 has finished and run success with provideCredentialWithoutUserInteraction. But we want to prepare our interface for use to input password and select passkey what the want. however the func prepareInterfaceToProvideCredential in ASCredentialProviderViewController does call? what i missed? how can i do it?
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142
Jul ’25
Persistent Privacy Notification Issue with Screen & Audio Access on macOS 15+
Hello Apple Developer Community, We have been experiencing a persistent notification issue in our application, Flowace, after updating to macOS 15 and above. The issue is affecting our customers but does not occur on our internal test machines. Issue Description When users share their screen using Flowace, they receive a repetitive system notification stating: "Flowace has accessed your screen and system audio XX times in the past 30 days. You can manage this in settings." This pop-up appears approximately every minute, even though screen sharing and audio access work correctly. This behavior was not present in macOS 15.1.1 or earlier versions and appears to be related to recent privacy enhancements in macOS. Impact on Users The frequent pop-ups disrupt workflows, making it difficult for users to focus while using screen-sharing features. No issues are detected in Privacy & Security Settings, where Flowace has the necessary permissions. The issue is not reproducible on our internal test machines, making troubleshooting difficult. Our application is enterprise level and works all the time, so technically this pop only comes after a period of not using the app. Request for Assistance We would like to understand: Has anyone else encountered a similar issue in macOS 15+? Is there official Apple documentation explaining this new privacy behavior? Are there any interim fixes to suppress or manage these notifications? What are Apple's prospects regarding this feature in upcoming macOS updates? A demonstration of the issue can be seen in the following video: https://youtu.be/njA6mam_Bgw Any insights, workarounds, or recommendations would be highly appreciated! Thank you in advance for your help. Best, Anuj Patil Flowace Team
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86
Apr ’25
Conditional Display of Passkey Provider in macOS \ iOS
Hello, I've developed a macOS app with an AutoFill Credential Provider extension that functions as a passkey provider. In the registration flow, I want my app to appear as a passkey provider only when specific conditions are met. Is there a way to inspect the request from the web before the passkey provider selection list is displayed to the user, determine whether my app can handle it, and then use that result to instruct the OS on whether to include my app in the passkey provider selection list? Alternatively, is there a way to predefine conditions that must be met before my app is offered as a passkey provider in the selection list? Thanks!
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540
Feb ’25