Hello,
I'm developing an iOS voice alarm app. Is there a supported public API that can launch or resume app code when an AlarmKit alarm fires, so it can announce the current time while the phone is locked, without user interaction or an internet connection?
The announcement needs to reflect the time playback actually begins, including when an alarm is delayed. Pre-generated audio would also work if the app can select the correct recording at playback time.
My prototype subscribes to AlarmManager.shared.alarmUpdates at app startup and attempts speech when the alarm becomes .alerting. This works in the foreground, but in background trials no speech attempt occurred before reopening the app. These trials did not test termination by iOS or user force-quit.
Could you clarify whether this use case is supported when the app is suspended, terminated by iOS, or force-quit by the user? If so, which API should I use? If not, could you confirm the limitation or suggest a supported alternative?
Test environment: iPhone 13, iOS 26.6.1 (23G83), Xcode 26.6, iPhoneOS 26.5 SDK; release build without a debugger attached.
Thank you for your guidance.