IntervalTimer - Workout Timer
naoki otsu Health & Fitness iPhoneiPadiPod touch
IntervalTimer - Workout Timer is a free Health & Fitness app for iPhone and iPad by naoki otsu. Requires iOS 15.1. Updated October 9, 2026.
- Price
- Free
- on the App Store
- Size
- 52 MB
- Age 4+
- Updated
- Oct 9
- 2026 · v2.25.0
Screenshots
About IntervalTimer - Workout Timer
A powerful app to create and start interval timers that repeat exercise and rest periods. Perfect for weight training, stretching, Pomodoro timers, and many other activities. Packed with features including unlimited tabs, custom durations, one-tap start and stop, dark mode, biometric authentication, and more. ■ Create Interval Timers Create and start timers with your preferred number of sets and durations. ■ Organize Timers by Tab Create your own timers for each category with unlimited tabs. ■ Set Counts, Preparation, Workout, and Rest Freely configure repeat counts and durations, then start right away. ■ No Login Required Use it immediately without logging in. ■ Back and Forward Buttons Go back one step or skip ahead with a single tap. ■ Swipe to Switch Tabs Swipe left or right to switch tabs and start your timer instantly. ■ Reorder Tabs Rearrange tabs by swiping. ■ Custom Background Colors per Tab Change the background color for each tab individually. ■ Backup and Restore Save your data permanently to the cloud and restore it instantly on a new device. ■ Dark Mode Work comfortably with a beautiful dark mode that is easy on the eyes. ■ Biometric Authentication Enhance app security with biometric authentication. ■ Tab Notes Leave your favorite notes on tabs. ■ Complete Security Data is never sent externally and is completely protected within your device. ■ Offline Support Works even without an internet connection. ■ Terms of Use https://naokiotsu.com/term-of-use ■ Privacy Policy https://naokiotsu.com/privacy-policy Support [email protected]
What’s new
Version 2.25.0 · Updated October 9, 2026
- The latest version includes new features, bug fixes, and performance improvements. Thank you for always using our app. We will continue to develop it with the valuable feedback from everyone. If you have any requests or encounter any issues, please feel free to contact us through "Send Feedback" in the app settings or at [email protected].
App privacy
The developer, naoki otsu, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Diagnostics: Crash Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data
Used for: Analytics
Alternatives to IntervalTimer - Workout Timer
Looking for apps like IntervalTimer - Workout Timer? Here are 6 similar apps on the App Store. The highest rated is Interval Timer: HIIT Workout (4.9/5), and all 6 are free to download.
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Gym Rest Timer - Sets & HIIT
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TimeFit - Interval Timer
4.7
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Interval Timer: HIIT Workout
4.9
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Interval Timer Plus
4.9
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Seconds Interval Timer
4.7
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Timer Plus - Workouts Timer
4.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| IntervalTimer - Workout Timer | – | Free | October 9, 2026 | |
| Gym Rest Timer - Sets & HIIT | – | Free | Sep 14, 2026 | Compare |
| TimeFit - Interval Timer | 4.7 / 5 (320) | Free | May 24, 2026 | Compare |
| Interval Timer: HIIT Workout | 4.9 / 5 (250) | Free | Feb 20, 2026 | Compare |
| Interval Timer Plus | 4.9 / 5 (6,273) | Free | Oct 1, 2026 | Compare |
| Seconds Interval Timer | 4.7 / 5 (23,757) | Free | Oct 8, 2026 | Compare |
| Timer Plus - Workouts Timer | 4.8 / 5 (61,125) | Free | Oct 22, 2026 | Compare |