AlarmKit

Schedule prominent alarms and countdown timers that surface on the Lock Screen, Dynamic Island, StandBy, and paired Apple Watch when firing. Targets iOS 26+ / iPadOS 26+.

UI Boundary: AlarmKit alerts use system-managed alert UI that breaks through Focus and Silent modes. Custom UI is limited to countdown and paused Live Activity states rendered by a Widget Extension.

Contents

• Authorization & Setup
• Scheduling Alarms
• Countdown Timers
• Alarm State Observation
• Widget Extension Live Activity
• Common Mistakes
• Review Checklist
• References

Authorization & Setup