Kaizen Timer

Interval Timer for Training

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Free and private by design: no ads, no tracking. Boxing, HIIT, Tabata & strength timers built your way. Precise background timing, Apple Health & no feature paywalls. 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

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

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

Version 1.5.1

The developer, Stefan Dasic, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Health & Fitness

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Stefan Dasic
Size
  • 3.5 MB
Category
  • Health & Fitness
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © Stefan Dasic 2026
  • Privacy Policy

    • More by Stefan Dasic

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