Gym Timer Pro vs Custom Interval Timers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gym Timer Pro
This free interval timer app helps you structure your workouts with customizable work, rest, and set periods. Easily configure countdowns or count-ups for up to three distinct workout items, with an optional ready time before starting.
- Countdown and count-up timers
- Up to 3 workout items
- Configurable work, rest, and sets
- Adjustable ready time
- Completely free with no ads or purchases
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The Gym Timer (100% free) NO Ads, NO subscriptions, NO in-app purchase Built for the author himself to use this app for his workout. You can count down or count up. You can have up to 3 workout items. You can configure WORK, REST, and SETS for each workout by simply dragging it. You can configure the ready time before the workout in the Settings. Enjoy the workout! I will update the app frequently!
Custom Interval Timers
Design personalized interval timers for workouts or productivity. Its intuitive editor allows for custom flows with various settings like countdowns and personalized interfaces. Offers light/dark modes and an option to disable ads.
- Customizable interval flows
- Intuitive timer editor
- Count up or down timers
- Personalized running interface
- Light/dark mode
- Ad-free option
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Create highly customizable interval timers in a beautiful Interface. Interval timers are useful for exercise, like High-intensity interval training (HIIT) or Tabata, and can also be used to manage productivity, events, and more! This app provides a fascinatingly simple and intuitive editor for setting up your own custom timers. With just a few building blocks you can create the exact experience you want. Multiple settings to match your preferences: - Count up or down - Personalize the running interface to show what matters to you - Light/dark mode - Disable ads for free!
Screenshots
Verdict
The clearest difference is ads: Gym Timer Pro at none against Custom Interval Timers's shown. Gym Timer Pro also leads on update cadence (every 4 days vs every 4 months) and monetization model (free vs ad-supported). On price, rating, review sentiment and ratings volume 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.
On the App Store both sit at effectively the same score — 5.0 for Gym Timer Pro against 5.0 for Custom Interval Timers. Both are backed by a comparable volume of ratings — 11 and 14 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Gym Timer Pro ships an update every 4 days, Custom Interval Timers every 4 months. The most recent releases landed on September 10, 2026 and August 24, 2026 respectively.
| Parameter | Gym Timer Pro | Custom Interval Timers |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (11 ratings) | 5.0 (14 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 | 14 — better |
| Update frequency | Every 4 days — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 57 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Dae Won Kim | Alex Rich |
Customer experience
Gym Timer Pro
Custom Interval Timers
In-app purchases
Gym Timer Pro
No in-app purchases
Custom Interval Timers
No in-app purchases
