# Kaizen Timer — Interval Timer for Training

> Interval Timer for Training (iPhone/iPad app by Stefan Dasic.)

- Source: https://appshunter.io/ios/app/kaizen-timer/id6758769895 (this page in markdown: same URL + `.md`)
- Developer: [Stefan Dasic](https://appshunter.io/developer/1861310477)
- Category: Health & Fitness, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 3 MB
- Languages: American English
- Released: 2026-02-26
- Data updated: 2026-09-01
- User reviews in markdown: https://appshunter.io/ios/app/kaizen-timer/id6758769895/reviews.md

## What is 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


## Version history (last 4 releases)

### 1.5.1 — 2026-08-31

- Small bug fixes.
Thanks to all for the support and kind words!

### 1.5.0 — 2026-08-28

- Bug fixes.
And thanks to all the support and kind words!

### 1.4.9 — 2026-08-26

- Bug fixes.
And thanks to all the support and kind words!

### 1.4.3 — 2026-02-26

No release notes.

## More apps by Stefan Dasic

- [HerFlow - Period Tracker](https://appshunter.io/ios/app/herflow-period-tracker/id6756548479)
- [Nurly – Baby Tracker & Log](https://appshunter.io/ios/app/nurly-baby-tracker-and-log/id6757131592)

All apps by Stefan Dasic: https://appshunter.io/developer/1861310477

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*