# Interval Timer vs Restrr

The clearest difference is review sentiment: Interval Timer at 67% against Restrr's 0%. Interval Timer also leads on rating (4.7 vs 3.0) and ratings volume (3.5K vs 2). Restrr's advantage is monetization model (free with in-app purchases vs subscription). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Interval Timer sells 12 in-app purchases, starting at $1.99 per month and Restrr sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Interval Timer has 3.5K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of Interval Timer's written reviews are positive against 0% of Restrr's.

Interval Timer ships an update every 4 weeks, Restrr every 3 months. The most recent releases landed on October 2, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Interval Timer | Restrr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3.5K ratings)](https://appshunter.io/ios/app/interval-timer/id1610398390/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/restrr-gym-rest-timer/id6478751420/reviews) |
| Number of ratings | **3.5K** | 2 |
| Positive reviews | **67.3% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 243 MB | 19 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [HIIT Apps Sp. z o.o.](https://appshunter.io/developer/1713395721) | [Matija Gunther](https://appshunter.io/developer/1733805006) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer/id1610398390)

This app is a versatile interval timer designed for various training styles like Tabata and HIIT. It offers customizable workout parameters, voice guidance, and music ducking for an enhanced training experience. Save your custom workouts and track your progress.

**Highlights:** Customizable interval settings, Voice assistant with text-to-speech, Music ducking for audio integration, Save custom workouts, Tabata, Rounds, Stopwatch modes, Apple Health integration

**Features:** Family Sharing, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intervals: monthly membership | $1.99 | per month |
| Intervals: membership | $3.99 | per 3 months |
| Intervals: monthly membership | $4.99 | per month |
| Intervals: yearly membership | $6.99 | per year |
| Intervals: yearly membership | $9.99 | per year |
| Intervals: yearly membership | $19.99 | per year |
| Intervals: yearly membership | $24.99 | per year |
| Intervals: membership | $24.99 | per year |
| Intervals \| PRO version | $14.99 | one-time |
| Intervals \| Membership | $14.99 | one-time |
| Intervals \| Membership | $34.99 | one-time |
| Intervals \| Membership | $39.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Customizable workouts
- 🚀 Versatile and efficient
- 🚀 Helpful voice prompts
- 👍 Seamless music integration

**What reviewers complain about**

- 🐛 Bugs causing lost workouts
- 🔋 High battery consumption
- 💰 Subscription-based model
- 🔒 Forced free trial
- 🐛 Timing issues with intervals

**Reported bugs**

- Workouts disappearing
- App crashes and freezes
- Timing issues with intervals

**Requested features**

- Apple Watch integration
- More customization options
- Additional audio cues and prompts
- Improved workout tracking and history


### Restrr

[App page](https://appshunter.io/ios/app/restrr-gym-rest-timer/id6478751420)

Optimize your strength training and HIIT workouts with a smart rest countdown and automatic set counter. Stay focused with customizable notifications and live activity integration. Train more efficiently and effectively.

**Highlights:** Smart rest countdown, Automatic set counter, Live Activities & Dynamic Island integration, Customizable notifications, Workout optimization

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $8.99 | per year |
| Lifetime | $3.99 | one-time |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Restrr free?

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

### Which has better reviews, Interval Timer or Restrr?

Interval Timer is rated higher. Interval Timer averages 4.7 out of 5 from 3.5K ratings, while Restrr averages 3.0 from 2 ratings.

### Do Interval Timer or Restrr have ads?

Neither Interval Timer nor Restrr shows ads.

### Which is updated more often, Interval Timer or Restrr?

Interval Timer ships an update every 4 weeks, and Restrr every 3 months. Most recently, Interval Timer was updated on October 2, 2026 and Restrr on September 24, 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.*