Comparison

Kaizen Timer vs Gym Timer

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Kaizen Timer

Features
Read full description

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 β€’ Presets for popular training styles β€’ Fully customizable work and rest intervals β€’ Advanced phase sequencing for complex workouts β€’ Clear visual and audio timers β€’ Accurate round and phase tracking β€’ Reliable timing when backgrounded or locked β€’ Home Screen widgets for quick access β€’ Light and dark mode support β€’ Optional Apple Health integration for workouts and calorie estimation β€’ Export completed workouts β€’ 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

About

Gym Timer

Features
Read full description

Train with precision. This workout timer is designed for focused HIIT, strength, and interval training. Whether you prefer audible alerts or silent vibration, the experience adapts to your environment so you can stay fully engaged in every session. The interface is clean and distraction-free, with clear work and rest timing that supports consistent performance. Create custom intervals, save routines, and repeat workouts effortlessly. Features β€’ Sound or vibration training alerts β€’ Work and rest interval timing β€’ Quick-start workout presets β€’ Custom routine builder β€’ Large, readable timer display β€’ Save and reuse workouts β€’ Clean, focused interface Pro Upgrade Unlock advanced flexibility: β€’ Unlimited custom presets β€’ Expanded interval options β€’ Persistent workout storage β€’ Additional visual themes A single upgrade β€” no subscription required. Built for HIIT sessions, strength training, circuit workouts, and cardio intervals. Designed to support focus, consistency, and progress.

Screenshots

Kaizen Timer4 screens
Gym Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Kaizen Timer at none against Gym Timer's 2. Kaizen Timer also leads on update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Gym Timer sells 2 in-app purchases, starting at $0.99 per month. Kaizen Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Kaizen Timer ships an update every 3 days, Gym Timer every 3 weeks. The most recent releases landed on September 14, 2026 and September 13, 2026 respectively.

Scorecard2 real differences Β· 4 level
Kaizen Timer versus Gym Timer: the parameters behind the verdict, then further details
ParameterKaizen TimerGym Timer
PriceFreeFree
Update frequencyEvery 3 days β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.0 β€” better
Further details β€” not scored
Size3 MB5 MB
Age rating4+4+
DeveloperStefan DasicAgustiyansyah Syam

In-app purchases

None

Kaizen Timer

No in-app purchases

2 purchases

Gym Timer

Subscriptions1
  • Gym Timer Pro$0.991 Month
One-time1
  • Gym Timer Pro$4.99

Questions

Is Kaizen Timer free?
Kaizen Timer is free to download, with no in-app purchases.
Is Gym Timer free?
Gym Timer is free to download, with in-app purchases available.
Do Kaizen Timer or Gym Timer have ads?
Neither Kaizen Timer nor Gym Timer shows ads.
Which is updated more often, Kaizen Timer or Gym Timer?
Kaizen Timer ships an update every 3 days, and Gym Timer every 3 weeks. Most recently, Kaizen Timer was updated on September 14, 2026 and Gym Timer on September 13, 2026.

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