Reminder apps can finally ring like real alarms on iPhone

For most of the iPhone's history, a reminder app could only ever send you a notification. Whatever the app called it, under the hood it was a notification, and notifications lose: to the silent switch, to Focus modes, and to the app being closed at the wrong moment. Alarms that ring loud at 6am no matter what were reserved for Apple's Clock app.

iOS 26 changed that. A new framework, AlarmKit, lets other apps schedule real alarms. This is the biggest change to how reminder apps can work in years, and most people evaluating reminder apps don't know it happened.

A notification asks. An alarm demands.

The practical difference: a notification shows up quietly and waits to be noticed. It respects silent mode and Focus, and it can be missed entirely. An alarm takes over the lock screen, rings out loud, and keeps ringing until you snooze or stop it.

Most reminders should stay notifications. If "reply to that email" rings like a fire drill, you'll learn to ignore the ringing, and then nothing is protected. Alarms are for the small set of things where missing them has a real cost: medication, a flight, picking someone up.

What an AlarmKit alarm actually does

• Rings loud on the lock screen, like a Clock alarm.
• Goes off even if the app is force-closed.
• You snooze or stop it the way you would any alarm.
• Requires iOS 26 or later.

How Nudge uses it

In Nudge, any task can have its reminder switched from a notification to a real alarm. One-time or repeating: weekdays, or custom days. The rest of your tasks keep getting normal reminders and follow-ups; the alarm is for the one thing that can't slip.

There's an Alarms screen with your upcoming alarms and a history of past ones, each marked Rang, Snoozed, Missed, or Undelivered. So when you're wondering whether the alarm actually went off, you can check instead of guessing.

The limits, plainly: alarms need iOS 26 or later. On Android, Nudge sends notification reminders, not on-device alarms. On the web you can view and edit alarms, but they don't ring in a browser.

If you're evaluating reminder apps for this

Three things worth checking in any app that claims alarms:

• Does it still ring with the app closed? If it's a notification wearing an alarm sound, it won't.
• What happens on silent? A real AlarmKit alarm rings anyway.
• Is there a record of whether it fired? An alarm you can't audit is an alarm you can't trust.

Nudge's alarms sit on top of its normal behavior: reminders that follow up when the first one wasn't enough. How that works is covered on the persistent reminders page.