# Gym Timer vs HIIT Timer / Interval Timer

The clearest difference is ads: Gym Timer at none against HIIT Timer / Interval Timer's shown. Gym Timer also leads on ratings volume (460 vs 14) and update cadence (every 3 weeks vs every 2 months). HIIT Timer / Interval Timer's advantage is rating (4.9 vs 4.5). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HIIT Timer / Interval Timer holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Gym Timer has 460 ratings behind it against 14, so its average is the more settled of the two.

Gym Timer ships an update every 3 weeks, HIIT Timer / Interval Timer every 2 months. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Gym Timer | HIIT Timer / Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (460 ratings)](https://appshunter.io/ios/app/gym-timer-timer-for-rest-time/id1146409173/reviews) | **[4.9 (14 ratings)](https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683/reviews)** |
| Number of ratings | **460** | 14 |
| Positive reviews | 55.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 19 MB | 12 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Giuseppe Fasano](https://appshunter.io/developer/1022759807) | [FugaPiyo Inc.](https://appshunter.io/developer/1497887610) |

## What reviewers say

### Gym Timer

[App page](https://appshunter.io/ios/app/gym-timer-timer-for-rest-time/id1146409173)

This app helps you track gym sessions and manage rest times between sets. It's designed for use on a smartwatch, allowing you to leave your phone behind. The app alerts you when it's time to train again, ensuring your workout flows smoothly.

**Highlights:** Track gym sessions, Time rest periods between sets, Smartwatch optimized, Phone-free gym experience, Alerts for training intervals, HealthKit integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and functional
- 👍 Intuitive and easy to use
- 💪 Helps keep track of sets and rest times
- 🔔 Vibration/audio alerts for rest time

**What reviewers complain about**

- 🐛 Crashes and bugs, especially on Apple Watch
- 🔍 Lack of customization options
- 💤 No background/low-power mode support
- 📢 Intrusive ads interrupting workouts

**Reported bugs**

- Timer resets unexpectedly
- Set/rep count not updating correctly
- Syncing issues with Apple Watch
- Notifications not working as expected

**Requested features**

- Add option to track exercise time
- Implement workout history/progress tracking
- Provide Apple Watch complications
- Offer paid ad-free version


### HIIT Timer / Interval Timer

[App page](https://appshunter.io/ios/app/hiit-timer-interval-timer/id1610842683)

This app provides a customizable timer for high-intensity interval training. Easily set up warm-up, workout, and cool-down periods with adjustable intervals and counts. Personalize colors, sounds, and notifications for a tailored experience.

**Highlights:** Unlimited timer creation, Customizable intervals (warm-up, workout, cool-down), Adjustable counts, Color and sound customization, Dark mode support, Background notifications

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Gym Timer free?

Gym Timer is free to download, with no in-app purchases.

### Is HIIT Timer / Interval Timer free?

HIIT Timer / Interval Timer is free to download, with no in-app purchases.

### Which has better reviews, Gym Timer or HIIT Timer / Interval Timer?

HIIT Timer / Interval Timer is rated higher. Gym Timer averages 4.5 out of 5 from 460 ratings, while HIIT Timer / Interval Timer averages 4.9 from 14 ratings.

### Do Gym Timer or HIIT Timer / Interval Timer have ads?

HIIT Timer / Interval Timer shows ads; Gym Timer does not.

### Which is updated more often, Gym Timer or HIIT Timer / Interval Timer?

Gym Timer ships an update every 3 weeks, and HIIT Timer / Interval Timer every 2 months. Most recently, Gym Timer was updated on September 20, 2026 and HIIT Timer / Interval Timer on September 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*