CalAlarm Lite
Calendar events that ring
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Calendar events become Clock-grade alarms that ring through Silent and Focus. An ad-free, unlimited paid version is also available.
■ 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 Lite 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
- Event moved? The alarm follows automatically
■ Rings through Silent and Focus
Built on iOS's alarm engine — the same one the Clock app uses.
It rings until you stop it.
■ Flexible lead times
Anywhere from on time to 12 hours before, per event if you like.
■ Quick Alarms & widget
A label and a time, three seconds. Toggle alarms right from the Home Screen widget.
■ About CalAlarm Lite
- Up to 3 alarms can be on at the same time
- Watch a short video ad to turn on as many as you like for 24 hours
- A banner ad is shown at the bottom of the screen
- Your calendar content is never sent to advertising partners
- No tracking permission is ever requested
■ Prefer no ads and no limits?
The paid, pay-once edition "CalAlarm" has no alarm limit and no ads.
You can switch from inside the app at any time.
■ Requirements
Requires an iPhone running iOS 26 or later
(uses the system's Clock-grade alarm engine).
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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 Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mitsuhiro Ogata
- Size
- 5.4 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+
- Contains
Advertising
- Copyright
- © 2026 Shiori Studio