# HIIT (US) vs Interval Timer

HIIT (US) and Interval Timer both sit at 5.0 stars, but that hides the real split: 84% of Interval Timer's written reviews are positive against 50% of HIIT (US)'s. Interval Timer also leads on ratings volume (246 vs 4). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. HIIT (US) sells 3 in-app purchases, starting at $1.99 per month and Interval Timer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for HIIT (US) against 4.9 for Interval Timer. That said, the two scores are not equally well evidenced: Interval Timer has 246 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 50% of HIIT (US)'s written reviews are positive against 84% of Interval Timer's.

HIIT (US) ships an update every 4 months, Interval Timer every 2 months. The most recent releases landed on October 4, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | HIIT (US) | Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hiit-us/id1485158100/reviews)** | [4.9 (246 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692/reviews) |
| Number of ratings | 4 | **246** |
| Positive reviews | 50.0% of reviews | **83.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 34 MB | 12 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Valentin Cattoen](https://appshunter.io/developer/1485158099) | [Yosyp Hameliak](https://appshunter.io/developer/895008826) |

## What reviewers say

### HIIT (US)

[App page](https://appshunter.io/ios/app/hiit-us/id1485158100)

Design custom workout timers with adjustable exercise durations, repetition counts, and time caps. Track progress, export results, and enjoy audio feedback and music integration. Supports various workout styles like AMRAP and Tabata.

**Highlights:** Customizable exercise timers, Repetition-based intervals, Time cap setting, Workout analysis and PDF export, Audio and sound feedback, Music playlist integration, QR code sharing/import

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HIIT Premium - 1 Month | $1.99 | per month |
| HIIT Premium - 6 Months | $7.99 | per 6 months |
| HIIT Premium - 12 Months | $10.99 | per year |


### 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 |


## Frequently asked questions

### Is HIIT (US) free?

HIIT (US) is free to download, with in-app purchases available.

### Is Interval Timer free?

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

### Which has better reviews, HIIT (US) or Interval Timer?

HIIT (US) is rated higher. HIIT (US) averages 5.0 out of 5 from 4 ratings, while Interval Timer averages 4.9 from 246 ratings.

### Do HIIT (US) or Interval Timer have ads?

Both HIIT (US) and Interval Timer show ads.

### Which is updated more often, HIIT (US) or Interval Timer?

HIIT (US) ships an update every 4 months, and Interval Timer every 2 months. Most recently, HIIT (US) was updated on October 4, 2026 and Interval Timer on October 19, 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.*