NanoTimer
App Store

Alarm clock app for iPhone

NanoTimer is a free alarm clock app that actually goes off: it breaks through the silent switch and through a Focus, and keeps ringing until you stop it. No ads, no subscription.

What makes an alarm app reliable

Most alarm apps lean on notifications. Those get muted by the silent switch, by a Focus and by your notification volume, and that is exactly why people stop trusting them.

NanoTimer uses AlarmKit, the system layer Apple opened up in iOS 26. That sets a real alarm, treated the same as the one in the Clock app.

What you get

  • A real alarm that breaks through silent and Focus (iOS 26 and up, with an honest fallback below that).
  • Repeat per weekday and snooze.
  • Keeps ringing until you stop it.
  • Free, without ads and without a subscription.

And the rest of the app

NanoTimer is more than an alarm: it also has a timer, interval and workout timers (Tabata, HIIT, EMOM, AMRAP, For Time), a stopwatch and a meditation timer. All with voice cues, and your own music keeps playing.

Pro is a one-time 6.99 euro for an unlimited library and deep stats. The things that make the app reliable stay free forever.

Make NanoTimer your alarm

Open the alarm tab on your phone, or download the app as soon as it is in the App Store.

Open on your phoneOpens the right tab in NanoTimer on your iPhone.
Download on theApp StoreLink coming soon

Frequently asked questions

Does the alarm go off when my phone is on silent?
Yes. The alarm uses AlarmKit and breaks through the silent switch and Focus, and keeps ringing until you stop it. That works on iOS 26 and up; below that there is an honest fallback.
Is the alarm clock app really free?
Yes. The alarm, the timers, the voice cues and music ducking are free. Pro (a one-time 6.99 euro) adds unlimited saving and deep stats. Never ads, never a subscription.
Which devices does it run on?
iPhone, iPad and Mac. NanoTimer needs iOS 18 or up; the AlarmKit alarm works on iOS 26 and up.

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