Hi all, I'm building a coaching app for runners on top of WorkoutKit and would like to confirm a missing API — or learn that I overlooked something. The gap IntervalStep transitions deliver a haptic at T0 of the next step. The available alerts (HeartRateRangeAlert, SpeedRangeAlert, PaceRangeAlert, PowerRangeAlert, CadenceRangeAlert) are reactive — they activate when the measured value leaves the target range, not ahead of a planned step. There is no API for a "pre-roll" haptic at, say, T-15s before a high- effort step. On watchOS today, the only signal arrives exactly at step start. What I checked The WorkoutAlert protocol and concrete types — all metric-driven, no scheduling primitive. IntervalStep initializer — (.work, step: WorkoutStep). No leadTime, warning, countdown, or prepareDuration parameter. CustomWorkout — no per-step pre-roll knob. WorkoutScheduler and the rest of the surface in iOS/watchOS 26.4 SDK. If I missed something obvious, please point me at it. Filed with Apple Feedback ID: FB22708659 Has anyone here found a cleaner workaround, or seen any signal from the WorkoutKit team about pre-roll cues being on the roadmap? Thanks!

I have a live activity and even after a couple of times that it has shown on my lock screen it keeps prompting the user to tap on Don't Allow or Allow. Can someone help me understand why this is happening? I would like my users to only hit Allow once and not be prompted again, otherwise they would not be registered for updates, since update token only generates after selecting Allow.

We’re building an iOS app that uses an ILMessageFilterExtension to classify unwanted property-related SMS messages. Our goal is for filtered/junk messages to trigger an automatic scan/classification flow so the main app can show the user useful stats like “X messages blocked since your last check-in,” and ideally categorize them by type such as likely wholesaler, investor, realtor, scam, or unclear. The bottleneck we’re running into is understanding the correct architecture and limits of the Message Filter Extension. We know the extension can inspect sender/message content and return allow/junk, and we understand that network requests are limited to Apple’s deferred query flow. What we’re trying to clarify is whether there is an Apple-compliant way for the extension to persist lightweight scan results or aggregate counts that the containing app can later read, without violating privacy or extension restrictions. We do not need to export a full copy of message bodies into the app; what we want is a compliant way to keep counters/summary metadata such as blocked count, blocked since last app open, and maybe category counts. Questions we’re trying to answer: Is it acceptable for an ILMessageFilterExtension to persist aggregate scan stats for later display in the main app? If so, what is the recommended storage pattern for lightweight counters/metadata? Can extension-side classification results be surfaced to the app only as summary data, not raw message content? If using deferred network classification, what is the best way to reflect those results back into user-facing counts like “messages blocked since last check-in”? Our desired user experience is: unwanted message hits the filter filter classifies it locally or via deferred server lookup message is junked if appropriate aggregate counters are updated when the user opens the app, they see something like: 12 messages blocked since your last check-in 8 likely wholesalers 3 scams 1 unclear We’re mainly looking for guidance on the correct Apple-supported architecture here, especially around what data can be retained/shared between the extension and the containing app.

Hi all, I'm building an iOS alarm app on AlarmKit (iOS 26+) and running into reliability issues I can't find documented anywhere. Hoping someone here has insight. What we're doing We schedule a "fan-out" pattern, a single user-set alarm becomes a sequence of AlarmKit alarms firing at regular intervals over ~50 minutes. The density is needed because we require repeated wake-up alerts the user can't easily ignore until they complete an explicit dismissal action. A single AlarmKit alarm that auto-mutes after Apple's default duration doesn't solve the heavy-sleeper case. We've seen other iOS alarm apps use a similar approach reliably on iOS 26+, so the pattern seems achievable. We're clearly missing something about AlarmKit's behavior under dense scheduling. The issue AlarmKit alarms intermittently fail to enter .alerting at their scheduled times when the device is locked. Lateness varies from ~20 seconds up to 4+ minutes. The bug is intermittent ie. no deterministic reproducer. When the lateness is short (~15-22s), the next alarm in the sequence often fires only a few seconds later, suggesting the first two get bunched rather than firing independently. When the lateness is long (minutes), our AlarmManager.shared.alarmUpdates subscriber observes zero .alerting transitions during the gap, then receives a flurry of events when the device wakes. Verified via on-thread Swift logging, not a bridge or JS-suspension issue. Our setup AlarmManager.AlarmConfiguration with .fixed(date) schedule, AlarmAttributes + stop button, StopAlarmIntent, custom .named(...) sound No alerting duration specified (we don't believe one is exposed) NSAlarmKitUsageDescription set; AlarmKit authorized Registered WidgetExtension for the auto Live Activity No Critical Alerts entitlement (docs suggest AlarmKit doesn't need it) Questions Is there a documented or undocumented density limit for AlarmKit alarms scheduled in close succession? What is iOS's behavior when multiple AlarmKit alarms are simultaneously in .alerting state? Coalesce? Queue? Drop? Is there a supported way for the app to control per-alarm alerting duration before iOS auto-mutes? For locked-overnight scenarios, are there documented power-management or dasd interactions that defer AlarmKit fires? Does declaring UIBackgroundModes fetch/processing affect this? Any insight or a point in the right direction would be super appreciated!

Hello, I am investigating a recurring crash that appears to be originating within the system's network stack. OS Version: iPhone OS 26.1 (23B85) Role: Foreground Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Subtype: KERN_INVALID_ADDRESS at 0x0000000000000000 Exception Codes: 0x0000000000000001, 0x0000000000000000 Triggered by Thread: 19 Description: The crash is triggered by Thread 19 and occurs deep within libquic.dylib during a QUIC recovery timer event. Based on the backtrace, the failure happens in quic_recovery_pto. The issue seems to occur when a protocol instance schedules a wakeup, leading to a null pointer dereference in the system library. Crashed Thread Backtrace snippet:Thread 19 Crashed: Thread 19 Crashed: 0 libquic.dylib 0x00000001a00a38cc quic_recovery_pto + 72 (quic_recovery.c:1259) 1 libquic.dylib 0x00000001a00a3390 quic_recovery_timer_fired + 132 (quic_recovery.c:1460) 2 libquic.dylib 0x00000001a00a1f8c quic_timer_run + 248 (quic_timer.c:210) 3 Network 0x000000018ec76cbc __nw_protocol_instance_schedule_wakeup_block_invoke + 76 (protocol_implementation.cpp:5847) 4 Network 0x000000018eba34e0 __nw_context_reset_timer_block_with_time_block_invoke + 268 (context.cpp:2224) 5 libdispatch.dylib 0x00000001c84727ec _dispatch_client_callout + 16 (client_callout.mm:85) 6 libdispatch.dylib 0x00000001c845d664 _dispatch_continuation_pop + 596 (queue.c:349) 7 libdispatch.dylib 0x00000001c8470528 _dispatch_source_latch_and_call + 396 (source.c:601) 8 libdispatch.dylib 0x00000001c846f1fc _dispatch_source_invoke + 844 (source.c:966) 9 libdispatch.dylib 0x00000001c8463288 _dispatch_workloop_invoke + 1612 (queue.c:4761) 10 libdispatch.dylib 0x00000001c846c3ec _dispatch_root_queue_drain_deferred_wlh + 292 (queue.c:7265) 11 libdispatch.dylib 0x00000001c846bce4 _dispatch_workloop_worker_thread + 692 (queue.c:6859) 12 libsystem_pthread.dylib 0x00000001ec0623b8 _pthread_wqthread + 292 (pthread.c:2696) 13 libsystem_pthread.dylib 0x00000001ec0618c0 start_wqthread + 8 (:-1) Can anyone provide insights into what might be causing libquic to access an invalid address in this context? Any help or suggestions for further diagnostics would be greatly appreciated.

Post app update our extension version is replaced with the new version. However occasionally maybe around 20% of the time The XPC connection we have for communication between the app and extension will not work. We have reconnection retry logic as well as tried stop and starting the extension but it appears once its broken its broken and all that fixes it is a machine restart. This is obviously not ideal. I have noticed a few other forums talking about the same or similar problem. https://developer.apple.com/forums/thread/728063 https://developer.apple.com/forums/thread/779395 https://developer.apple.com/forums/thread/742992 When we run on a broken upgrade cycle `sudo launchctl print system/NetworkExtension.com.company.example.app.filter.5.5.0.2248 ` We notice that endpoints is missing from the log. However if we run the same command in terminal for a working upgrade cycle endpoints = {} exist. Therefore for some reason our xpc isn't actually getting registered.

Hi, Is there way to connect the host usb devices directly to guest vms using mac os Virtualization framework? Thanks

We were using a BLE mouse with HID command in iOS device, mainly iPhone device and we can use the mouse pointer using the assistive touch . But when we updated the iOS version to iOS 26.4.2 , the mouse pointer become very slow and jumpy. So something changed in the latest version that hurt the BLE mouse pointer Please update your feedback or similar issues

Hello there, I am wanting to create a custom FSKit extension, and am trying to get the sample passthrough project running: https://developer.apple.com/documentation/fskit/building-a-passthrough-file-system I have just followed the basic instructions from the tutorial above, so have: Selected my team for the signing certificate (required for FSKit module). Built and run. Enabled "Passthrough file system" under "File System Extensions". Made a test directory to mount to: mkdir ~/test But when I run the mount command, I get the following error: mount -t passthrough ~/Documents ~/test mount: Loading resource: The operation couldn’t be completed. (com.apple.extensionKit.errorDomain error 2.) mount: exec /Library/Filesystems/passthrough.fs/Contents/Resources/mount_passthrough for /Users/xxxxxxxx/test: No such file or directory mount: /Users/xxxxxxxx/test failed with 72 The contents of /Library/Filesystems/ is empty, so I don't know if allowing the extension is meant to add something to this directory or not. Any help would be much appreciated!

I am building an iOS mobile application using Flutter, with native Swift integration for accessing Apple HealthKit instead of a Flutter plugin. The primary goal is to capture and sync specific HealthKit data types, namely Respiratory Rate and Sleeping Wrist Temperature, and send this data to a backend API as close to real-time as possible after it is written to HealthKit. The application needs to support both foreground and background syncing. Data should be synced when the app is opened, but also in the background when the device is locked. Additionally, there are reliability constraints to consider: the user may not open the app for extended periods, the device may remain locked, and Low Power Mode or other system restrictions may impact background execution. I have explored a few possible approaches. One option is using BGTaskScheduler to periodically fetch and sync data. However, based on my understanding, background tasks are not guaranteed to execute frequently and may be throttled or stopped by the system after some time. Another approach is to use HKObserverQuery along with HKAnchoredObjectQuery. In this setup, observer queries would be registered for the required data types, background delivery would be enabled, and whenever triggered, anchored queries would fetch incremental updates which would then be sent to the backend. This seems closer to a real-time model, but I am unsure how reliable and timely these background updates are in practice. I have also looked into newer APIs like HKQueryDescriptor, but it is not clear whether they provide any advantage over the observer plus anchored query approach for this use case. My main questions are: what is the recommended architecture for achieving near real-time syncing of HealthKit data for these metrics? Does HealthKit background delivery provide any guarantees or expectations around delivery timing, or can updates be significantly delayed depending on system conditions? How should edge cases be handled, such as when the device remains locked for long durations or when Low Power Mode is enabled? Would it be advisable to combine observer queries with BGTaskScheduler as a fallback mechanism? Finally, apps like Athlytic appear to show updated data immediately when opened. I am curious whether this is primarily achieved through background delivery or by fetching data on demand when the app becomes active. The goal is to design a system that is as close to real-time as possible while remaining reliable and compliant with iOS background execution constraints. Any recommended patterns, best practices, or references would be greatly appreciated.

Hello, I have submitted the Family Controls Distribution entitlement request twice, but I have not received any confirmation email or follow-up number for either submission. App: parental control app Bundle ID: com.learnunlock.app Use case: We use FamilyControls (authorization), ManagedSettings (shield apps), and DeviceActivity (schedule restrictions) to help families manage screen time. Could anyone from Apple please check the status of my submissions, or advise on next steps? Thank you.

Is there any way to start a cycling navigation in Maps.app from another app? This seems to work with walking and driving directions, but nothing I've tried has gotten it to work with cycling.

According to documentation, the URLSession background tasks continue even when the app is suspended. What is the lifespan of the URLSessionDownloadDelegate object when app is suspended or terminated? Will it get re-created and re-initialize properties when the app re-launches, or will it somehow restore the existing property values? Also, urlSessionDidFinishEvents not getting called, and what do we need to do there with the backgroundCompletionHandler? Any insights are much appreciated. We are getting ready to launch and this is a roadblock. (visionOS26.4) Thank you. @Observable class DownloadManager: NSObject, URLSessionDownloadDelegate { ... let config = URLSessionConfiguration.background(withIdentifier: "TestDL") config.sessionSendsLaunchEvents = true var urlSession = URLSession(configuration: config, delegate: self, delegateQueue: nil) func downloadFiles(... { // initiate multiple file downloads concurrently for url in urlList { let task = urlSession.downloadTask(with: url) task.resume() } } func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) { ... func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didWriteData bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64) { ... func urlSession(_: URLSession, task: URLSessionTask, didCompleteWithError error: Error?) { ... // Not getting called ?? // Is this only called when app is suspended/terminated? func urlSessionDidFinishEvents(forBackgroundURLSession session: URLSession) { print("didFinishEvents") Task { @MainActor in //urlSession?.finishTasksAndInvalidate() //urlSession = nil // not sure what to do here: if let appDelegate = UIApplication.shared.delegate as? AppDelegate, let completionHandler = appDelegate.backgroundCompletionHandler { completionHandler() appDelegate.backgroundCompletionHandler = nil } } }

We are facing issues with the Apple Pay pop up addresses. So for Portugal and Romania, we would like to collect the user's Province/State as part of the checkout experience. We already do that with other payment methods, however, we noticed Apple Pay pop up doesn't include state/province fields for these two countries, which causes orders to arrive with that field as blank. This is causing a lot of logistics issues during fulfillment. Is there a way to fix this and have the field appear for Portugal and Romania users? Case reference: 102869141084 Thank you!

We have an app that uses PushKit and CallKit for video calling. These are often emergency calls, so very latency-sensitive. We keep track of when we sent out the APNs request and when the phone started ringing. The p95 latency is about 2 seconds (mean is ~800ms), which feels quite long.. Is this normal? I'd expect <500ms most of the time given that the devices and servers are all within the US. The users typically have a stable internet connection. Our requests look like this: POST https://api.push.apple.com/3/device/<DEVICE_TOKEN> apns-topic: com.vpt.physician.voip apns-push-type: voip apns-priority: 10 apns-expiration: 0 authorization: bearer <APNS_PROVIDER_TOKEN> content-type: application/json {  "aps": {    "content-available": 1  },  "title": "Example Text",  "type": "CallFromTablet",  "timeout_ms": 30000 } If there's any more info I can provide to help troubleshoot this, let me know. Thanks in advance.

I'm implementing EU external purchase using ExternalPurchaseCustomLink. No IAP transactions are offered on EU storefronts — payment happens entirely on our external website. I want to call Product.products(for:) on EU storefronts solely to fetch localized product metadata (displayName, displayPrice, currency formatting) for display. Product.purchase() will never be called. Is it acceptable to use Product.products(for:) for read-only product info display on EU storefronts where only external purchase is offered?

Hi We are trying to set the child's age but kind of stuck in loop in Age Range SetUp. Attached a video for reference. Could you please suggest what steps we are missing or is this a Bug from Age Range Services Framework.

Hello, We are planning to shut down our mobile app service and need to discontinue our auto-renewable subscription product. Our service termination date is July 31, and we are currently preparing the backend implementation for this. We have reviewed the official documentation and Apple Developer Forums, but there are several behaviors we cannot confirm through sandbox testing, as the "Remove from Sale" setting does not appear to affect the sandbox environment. We would greatly appreciate clarification on the following: Server notification at the moment of "Cleared for Sale" being unchecked When we uncheck "Cleared for Sale" in App Store Connect, is any App Store Server Notification (V2) sent to our server immediately at that moment? If yes, what is the exact notificationType and subtype value sent? If no, when is the first notification triggered for existing active subscribers after this action? 2. Notification sequence from product removal through final expiration For existing active subscribers, what is the exact sequence of notificationType and subtype values our server should expect — from the moment we remove the product from sale through the subscriber's final expiration? Based on our research, we believe the sequence may be: (1) Cleared for Sale unchecked → (2) No immediate notification → (3) At next renewal attempt → EXPIRED with subtype PRODUCT_NOT_FOR_SALE Could you confirm whether this is correct, or provide the accurate sequence? 3. Whether DID_CHANGE_RENEWAL_STATUS is sent before EXPIRED Is a DID_CHANGE_RENEWAL_STATUS notification sent to our server at the moment of removal from sale, before the EXPIRED notification at the renewal date? If yes, what is the subtype of this notification? 4. Recommended server-side handling per notification For each notification in the sequence above, what is the recommended server-side action? For example: On EXPIRED with subtype PRODUCT_NOT_FOR_SALE → revoke entitlement immediately? On DID_CHANGE_RENEWAL_STATUS (if sent) → update status only, do not revoke entitlement yet? Sandbox testing limitations We have confirmed that the "Remove from Sale" setting does not affect the sandbox environment. Is there any recommended way to test this scenario before applying it in production? If sandbox testing is not possible for this case, is there any official confirmation of this limitation? We have a fixed service termination schedule and need to ensure our backend handles this correctly. Any clarification or pointers to official documentation would be greatly appreciated. Thank you.

Both Photos and Lightroom are able to detect when a card reader has been plugged into an iPhone or iPad and a card exists with the correct DCIM format (from a digital camera). I have been unable to find the API that allows an application to do this (except using the standard file import function and making the user navigate to the card). ChatGPT tells me that Photos and Lightroom use a private API that is not made available to normal developers. Does anyone know if this is true - or if not then how to detect that a card is present using Swift?

Hello! I'm trying to implement an editor app (macOS) that allows the user to write code, which will be compiled and executed, showing the result in the editor window. Imagine it like SwiftUI previews, but the graphic output is created with Metal, not SwiftUI. I found that IOSurface can be used to share that kind of data over XPC, so I would not have to rely on the private NSRemoteView. However, I'm confused if it is, at all, possible for my editor app to connect to an XPC Service, that was NOT bundled with it (but compiled by it at runtime). I succeeded to launch an XPC service defined as: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>com.myteam.myproject.service</string> <key>MachServices</key> <dict> <key>com.myteam.myproject.service</key> <true/> </dict> <key>Program</key> <string>/Path/to/service/run_my_service.sh</string> </dict> </plist> But the call to let connection = NSXPCConnection(machServiceName: "com.myteam.myproject.service") let proxy = connection.remoteObjectProxyWithErrorHandler { error in continuation.resume(throwing: error) } as? MyServiceProtocol fails with "The connection to service named com.myteam.myproject.service was invalidated: Connection init failed at lookup with error 3 - No such process." I have added <key>com.apple.security.temporary-exception.mach-lookup.global-name</key> <array> <string>com.myteam.myproject.service</string> </array> to my entitlements. Since the tutorials I followed are quite old, I'm wondering if support for something like this was dropped at some point. Thanks for any advice!