# Interval Timer □ HIIT Timer vs Restrr

The clearest difference is review sentiment: Interval Timer □ HIIT Timer at 61% against Restrr's 0%. Interval Timer □ HIIT Timer also leads on rating (4.8 vs 3.0) and ratings volume (86K vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Interval Timer □ HIIT Timer sells 5 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 □ HIIT Timer holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Interval Timer □ HIIT Timer has 86K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 61% of Interval Timer □ HIIT Timer's written reviews are positive against 0% of Restrr's.

Interval Timer □ HIIT Timer ships an update every 5 weeks, Restrr every 3 months. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Interval Timer □ HIIT Timer | Restrr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (86K ratings)](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/restrr-gym-rest-timer/id6478751420/reviews) |
| Number of ratings | **86K** | 2 |
| Positive reviews | **60.7% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 34 MB | 19 MB |
| Requires iOS | **15.6** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Float Tech, LLC](https://appshunter.io/developer/483697886) | [Matija Gunther](https://appshunter.io/developer/1733805006) |

## What reviewers say

### Interval Timer □ HIIT Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-timer/id1124297113)

Create custom workout timers with adjustable intervals for exercise and rest.  Track your progress with detailed history and statistics, and repeat past workouts easily.  Enjoy audio cues without interrupting your music.

**Highlights:** Customizable intervals, Workout and rest timers, Voice or beep guides, Background audio support, Workout history and statistics, Repeat previous workouts

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pass | $1.99 | per month |
| Premium Pass | $2.99 | per month |
| Lifetime Pass | $14.99 | one-time |
| Lifetime Pass | $19.99 | one-time |
| Premium Forever Promo | $29.99 | one-time |

**What reviewers like**

- 🚀 Simple and easy to use
- 👍 Customizable settings
- 🚀 Intuitive interface
- 🚀 Effective for HIIT workouts
- 👍 Helpful voice prompts

**What reviewers complain about**

- 🔒 Requires subscription after limited free use
- 🐛 Music volume issues with voice prompts
- 🐛 Inconsistent behavior when switching apps
- 🐛 Lack of final workout notification

**Reported bugs**

- Timer not always accurate
- Favorites/saved workouts feature not working
- Inconsistent behavior when pausing/resuming

**Requested features**

- Ability to save and name custom workouts
- More flexibility in exercise/rest time settings
- Option to adjust volume of voice prompts


### 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 □ HIIT Timer free?

Interval Timer □ HIIT 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 □ HIIT Timer or Restrr?

Interval Timer □ HIIT Timer is rated higher. Interval Timer □ HIIT Timer averages 4.8 out of 5 from 86K ratings, while Restrr averages 3.0 from 2 ratings.

### Do Interval Timer □ HIIT Timer or Restrr have ads?

Neither Interval Timer □ HIIT Timer nor Restrr shows ads.

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

Interval Timer □ HIIT Timer ships an update every 5 weeks, and Restrr every 3 months. Most recently, Interval Timer □ HIIT Timer was updated on October 1, 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.*