Kaizen Timer
Stefan Dasic Health & Fitness iPhoneiPadiPod touch
Kaizen Timer is a free Health & Fitness app for iPhone and iPad by Stefan Dasic. Requires iOS 17.6. Updated August 31, 2026.
- Price
- Free
- on the App Store
- Size
- 3 MB
- Age 4+
- Updated
- Aug 31
- 2026 · v1.5.1
Screenshots
About Kaizen Timer
Kaizen Timer is a customizable interval timer for boxing, HIIT, Tabata, treadmill workouts, strength training, and more. Build simple work–rest intervals or create advanced multi-phase workouts that match exactly how you train. Start quickly with ready-made presets, or customize every phase, round, work period, and rest period. FEATURES • Presets for popular training styles • Fully customizable work and rest intervals • Advanced phase sequencing for complex workouts • Clear visual and audio timers • Accurate round and phase tracking • Reliable timing when backgrounded or locked • Home Screen widgets for quick access • Light and dark mode support • Optional Apple Health integration for workouts and calorie estimation • Export completed workouts • Available in multiple languages, including: English, French, German, Italian, Russian, Spanish, Japanese, Chinese BUILT FOR CONSISTENCY Set your training intensity and let Kaizen Timer handle the structure. Timers stay accurate even during interruptions, helping you stay focused through every round. FREE TO USE All Kaizen Timer features are available for free. An optional support subscription helps fund ongoing development, but subscribing is never required to access features or content. Train smarter. Stay focused. Improve every round. Terms of Use: https://kaizentimerapp.com/terms.html Privacy Policy: https://kaizentimerapp.com/privacy.html
What’s new
Version 1.5.1 · Updated August 31, 2026
- Small bug fixes. Thanks to all for the support and kind words!
App privacy
The developer, Stefan Dasic, reported these privacy practices to Apple.
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:
- Health & Fitness: Health, Fitness
Used for: App Functionality
Alternatives to Kaizen Timer
Looking for apps like Kaizen Timer? Here are 6 similar apps on the App Store. The highest rated is RollJournal (5.0/5), and 5 of the 6 are free to download.
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RollJournal
5.0
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Herflow: Period Cycle Tracker
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Interval Timer · HIIT & Yoga
4.0
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Gym Timer: Workout Interval
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RoundTimer Elite
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Sunway Medical Ipoh
| App | Rating | Price | Last updated |
|---|---|---|---|
| Kaizen Timer | – | Free | August 31, 2026 |
| RollJournal | 5.0 / 5 (2) | 4.99 USD | Sep 23, 2026 |
| Herflow: Period Cycle Tracker | – | Free | Aug 31, 2026 |
| Interval Timer · HIIT & Yoga | 4.0 / 5 (5) | Free | Sep 19, 2026 |
| Gym Timer: Workout Interval | – | Free | Apr 10, 2026 |
| RoundTimer Elite | 5.0 / 5 (3) | Free | Aug 17, 2024 |
| Sunway Medical Ipoh | – | Free | Sep 15, 2026 |