ondot timer｜No-Math Timer
Set the time. See what remains
Free · Designed for iPhone. Not verified for macOS.
No math. Just enter the time you want it to ring.
"I need to leave by 10:50... how many minutes is that?"
"I have to get off at 14:51... how long do I have?"
You don't need to calculate anymore.
ondot timer starts from the time you want it to ring.
See both "when it rings" and "time remaining" at a glance.
■ for people who
・Find "how many minutes?" math annoying
・Want to know when the timer rings, not just the countdown
・Don't want to clutter their alarm list
・Want to timebox small tasks by clock time
■ perfect for
・Napping on trains — enter arrival time directly
・"Back by 1:00 PM" lunch break timer
・"Leave the cafe by 3:00" deadline
・Keeping housework from dragging on
■ end time mode — set the exact time to ring
"Ring at 14:51." That's it.
■ duration mode — start from minutes
"20 minute timer" works too.
Shows the exact time it will ring, so you always know when it ends.
■ presets
Save your frequent settings.
Add a title. One tap to start.
■ Apple Watch
Check the countdown on your wrist.
Works independently without iPhone.
■ Live Activity
Real-time display on Lock Screen and Dynamic Island.
Check the timer while using other apps.
*Supported devices only
Free. No ads. No account required.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Japanese UI support. Switch anytime in Settings.
New
- Japanese language support
- Switch between English and Japanese in Settings
Thanks for all the requests and feedback!
A short review would mean a lot. #ondottimer
The developer, Momoka Shiramizu, 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
- Momoka Shiramizu
- Size
- 3.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Copyright
- © 2026 nemuiasa