Free interactive checklist
iPhone alarm checklist: six things to test before you sleep
An alarm matters most when you cannot afford to miss it. Prepare your iPhone, test with the screen locked, and arrange an independent backup. This page helps you check your setup; it does not sound an alarm.
Last reviewed: October 12, 2026 · iPhone and verified WakeOps behavior.
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Why your iOS version matters
Apple's Clock alarms sound through Silent mode and Focus. On iOS 26 and later, WakeOps uses Apple's AlarmKit system alarms. On earlier supported iOS versions it uses Time Sensitive notifications, which cannot make an alert sound through Silent mode even when an allowed Focus lets them through.
The Apple Stop control may appear for an AlarmKit alarm, but it does not complete the WakeOps mission. The alarm can return only during a limited enforcement window. WakeOps cannot raise the device's system volume.
Check the built-in Clock controls in Apple's iPhone alarm guide and notification exceptions in Apple's Focus guide.
What checking the boxes does not prove
This website cannot read your volume, battery, permissions or scheduled alarms. Checking a box is not an automated phone test. A short rehearsal cannot guarantee tomorrow's alert. Lock your phone and test it where you will leave it overnight. Keep a separate backup for flights, shifts and exams.
If no alarm rings, use the iPhone alarm troubleshooting guide. If it rings but you dismiss it in your sleep, try the free wake-up mission picker to choose a suitable mission.
Want an alarm that requires a task?
WakeOps lets you rehearse any mission for free. Scheduling an actual alarm requires WakeOps Premium in the app. Rehearse before relying on it.