# HIIT (US) vs Interval Timer

The clearest difference is review sentiment: Interval Timer at 91% against HIIT (US)'s 50%. Interval Timer also leads on ads (none vs shown) and update cadence (every 2 days vs every 4 months). HIIT (US)'s advantage is rating (5.0 vs 4.8) and device support (4 vs 2). On price, in-app purchases and monetization model 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 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

HIIT (US) holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Interval Timer has 77 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 50% of HIIT (US)'s written reviews are positive against 91% of Interval Timer's, so the app with the better star average is not the one people write more warmly about.

HIIT (US) ships an update every 4 months, Interval Timer every 2 days. The most recent releases landed on October 4, 2026 and October 12, 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)** | [4.8 (77 ratings)](https://appshunter.io/ios/app/interval-timer-tabata-workout/id1522536309/reviews) |
| Number of ratings | 4 | **77** |
| Positive reviews | 50.0% of reviews | **91.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 34 MB | 19 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Valentin Cattoen](https://appshunter.io/developer/1485158099) | [Mizo LLC](https://appshunter.io/developer/1820590289) |

## 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-tabata-workout/id1522536309)

This app provides a customizable round-based timer for various time-based activities, including HIIT, circuit training, and boxing. It features a minimalistic design with big digits and bright colors, offering hand-crafted sounds to maintain focus. Users can create complex workouts, save custom sets, and track their workout history with Apple Health integration.

**Highlights:** Customizable round-based timer, Minimalistic design with big digits, Hand-crafted sounds for focus, Unlimited saved intervals, Quick Set feature, Apple Health integration, Dark Mode support

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Intervals+ Monthly | $1.99 | per month |
| Intervals+ Lifetime | $9.99 | 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 4.8 from 77 ratings.

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

HIIT (US) shows ads; Interval Timer does not.

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

HIIT (US) ships an update every 4 months, and Interval Timer every 2 days. Most recently, HIIT (US) was updated on October 4, 2026 and Interval Timer on October 12, 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.*