# Interval Timer vs TMR Interval Timer & Stopwatch

The clearest difference is ads: TMR Interval Timer & Stopwatch at none against Interval Timer's shown. TMR Interval Timer & Stopwatch also leads on update cadence (every 9 days vs every 2 months). Interval Timer's advantage is device support (4 vs 1) and iOS requirement (13.0 vs 17.6). On price and in-app purchases there is nothing between them.

Both are free to download. Interval Timer sells 1 one-off in-app purchase and TMR Interval Timer & Stopwatch sells 8 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Interval Timer ships an update every 2 months, TMR Interval Timer & Stopwatch every 9 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Interval Timer | TMR Interval Timer & Stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (246 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692/reviews)** | — |
| Number of ratings | **246** | — |
| Positive reviews | 83.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 17 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yosyp Hameliak](https://appshunter.io/developer/895008826) | [Aliaksei Kruchkou](https://appshunter.io/developer/1591743875) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692)

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

**Highlights:** Customizable work and rest periods, Set number of sets and rounds, Background operation support, Music playback compatibility, Apple Watch integration, Heart rate monitoring (Apple Watch)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### TMR Interval Timer & Stopwatch

[App page](https://appshunter.io/ios/app/tmr-interval-timer-and-stopwatch/id6754839518)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly TMR Pro | $0.99 | per 7 days |
| TMR Pro Monthly | $3.99 | per month |
| TMR Pro Monthly | $3.99 | per month |
| TMR Pro Weekly | $5.99 | per 7 days |
| Annual TMR Pro | $10.99 | per year |
| TMR Pro Annually | $19.99 | per year |
| TMR Pro Annually | $19.99 | per year |
| Annual TMR Pro | $34.99 | per year |


## Frequently asked questions

### Is Interval Timer free?

Interval Timer is free to download, with in-app purchases available.

### Is TMR Interval Timer & Stopwatch free?

TMR Interval Timer & Stopwatch is free to download, with in-app purchases available.

### Do Interval Timer or TMR Interval Timer & Stopwatch have ads?

Interval Timer shows ads; TMR Interval Timer & Stopwatch does not.

### Which is updated more often, Interval Timer or TMR Interval Timer & Stopwatch?

Interval Timer ships an update every 2 months, and TMR Interval Timer & Stopwatch every 9 days. Most recently, Interval Timer was updated on October 19, 2026 and TMR Interval Timer & Stopwatch on October 7, 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.*