HC HIIT Interval Timer vs Kaizen Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HC HIIT Interval Timer
Create and manage custom interval training workouts with an integrated timer. Design workouts with specific actions, colors, names, and durations. Suitable for personal training or individual fitness routines.
- Create custom workouts
- Integrated workout timer
- Define actions with color, name, and duration
- Use default workouts
- Save and reuse workout routines
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This application is made by volunteers, trying to help their trainer to make things easy with their workouts for the members of the Health Club from Novi Sad, Serbia, but it can be used by anyone on the App Store! With HC HIIT Interval Timer you can keep your workouts simple and in one place with an integrated timer inside every action of workout. The goal of the application is to prepare workouts that can be used later for training. You can freely use the default workouts from the application, and you can make new ones for yourself. The main features of the application are adding and using workouts. Every workout is built from actions. Every action has color, name, and number of seconds for action. We wish you to create your best workouts and maintain your health!
Kaizen Timer
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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
Screenshots
Verdict
The clearest difference is update cadence: Kaizen Timer at every 3 days against HC HIIT Interval Timer's every 21 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HC HIIT Interval Timer ships an update every 21 months, Kaizen Timer every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | HC HIIT Interval Timer | Kaizen Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 21 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Dejan Dragic | Stefan Dasic |
In-app purchases
HC HIIT Interval Timer
No in-app purchases
Kaizen Timer
No in-app purchases
Questions
Is HC HIIT Interval Timer free?
Is Kaizen Timer free?
Do HC HIIT Interval Timer or Kaizen Timer have ads?
Which is updated more often, HC HIIT Interval Timer or Kaizen Timer?
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