CalAlarm — Calendar Alarms
Rings through Silent & Focus
Only for iPhone
£9.99 · Designed for iPhone. Not verified for macOS.
iPhone
Rings through Silent and Focus — the one thing notifications can't do. CalAlarm turns calendar events into Clock-grade alarms. One switch. Pay once, no subscription.
■ Notifications get missed. Alarms don't.
Ever missed a meeting because the calendar banner vanished in a second —
or never made a sound in Silent or Focus mode?
CalAlarm turns just the events you can't afford to miss
into full-strength alarms, powered by the same mechanism as the Clock app.
■ One switch. That's the whole workflow.
- Your next 7 days of calendar events, listed automatically
- Flip the switch on the important ones — they become alarms
- No more copying times into the Clock app by hand
■ Rings through Silent and Focus
Built on iOS's alarm engine — the same one the Clock app uses.
Silent switch on? Do Not Disturb? It rings until you stop it.
■ When your calendar moves, alarms move too
- Meeting moved from 10 to 11? The alarm follows automatically
- Event deleted? The alarm is removed
- Your calendar is the source of truth — always in sync
■ Flexible lead times
- Set a global default, anywhere from on time to 12 hours before
- Override per event: dentist 30 min early, a commute morning 2 hours
■ Quick Alarms
For errands too small for the calendar:
a label, Today/Tomorrow, a time. Three seconds.
■ Home Screen widget
See upcoming events and alarm states at a glance,
and toggle alarms with a tap — without opening the app.
■ Privacy first
- No account. No server.
- Your calendar content never leaves your device
- No tracking. No ads.
■ Made for you if…
- You've been late because you missed a calendar notification
- You keep re-checking the clock before important events
- You manually re-type event times into the Clock app
- Working from home, you fear joining meetings late
- You prefer simple, pay-once tools
■ Requirements
Requires an iPhone running iOS 26 or later
(uses the system's Clock-grade alarm engine).
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
You can now set an alarm up to 12 hours before an event (the old limit was one hour).
• Separate hours and minutes wheels, so a long lead time is still quick to pick — and still to the minute
• One-tap presets for 5, 10 and 30 minutes, and 1 and 2 hours
• When the alarm lands on the previous day, the date is shown alongside the time
The developer, Mitsuhiro Ogata, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Mitsuhiro Ogata
- Size
- 1.4 MB
- Category
- Productivity
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Shiori Studio
