# HIIT Timer vs Interval Timer One

The clearest difference is ads: Interval Timer One at none against HIIT Timer's shown. Interval Timer One also leads on rating (5.0 vs 4.5) and monetization model (free vs ad-supported). HIIT Timer's advantage is ratings volume (42 vs 2). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Interval Timer One holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: HIIT Timer has 42 ratings behind it against 2, so its average is the more settled of the two.

HIIT Timer ships an update every 6 weeks, Interval Timer One every 2 months. The most recent releases landed on September 25, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | HIIT Timer | Interval Timer One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (42 ratings)](https://appshunter.io/ios/app/hiit-timer-training-timer/id1512459496/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/interval-timer-one/id6449265364/reviews)** |
| Number of ratings | **42** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Ad-supported | **Free** |
| Size | 28 MB | 2 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marc Prez Calmet](https://appshunter.io/developer/1481950395) | [jun hyun](https://appshunter.io/developer/1688453095) |

## What reviewers say

### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer-training-timer/id1512459496)

This app provides a versatile timer for various high-intensity interval training routines like HIIT, EMOM, and Tabata. It allows users to create custom workouts, track progress, and offers multiple training modes with an intuitive interface.

**Highlights:** Customizable interval timers, Support for HIIT, EMOM, Tabata, AMRAP, Progress tracking for workouts, Multiple training modes, Intuitive and easy-to-use interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Interval Timer One

[App page](https://appshunter.io/ios/app/interval-timer-one/id6449265364)

This user-friendly interval timer app simplifies fitness routines by allowing effortless customization of workout durations. It offers intuitive controls for setting intervals, pausing, resuming, and adjusting the timer, ensuring a focused and efficient training experience without unnecessary features.

**Highlights:** Intuitive interval customization, Pause and resume functionality, Adjust timer forward/backward, Uninterrupted timer operation, Plays music without disruption

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Timer free?

HIIT Timer is free to download, with no in-app purchases.

### Is Interval Timer One free?

Interval Timer One is free to download, with no in-app purchases.

### Which has better reviews, HIIT Timer or Interval Timer One?

Interval Timer One is rated higher. HIIT Timer averages 4.5 out of 5 from 42 ratings, while Interval Timer One averages 5.0 from 2 ratings.

### Do HIIT Timer or Interval Timer One have ads?

HIIT Timer shows ads; Interval Timer One does not.

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

HIIT Timer ships an update every 6 weeks, and Interval Timer One every 2 months. Most recently, HIIT Timer was updated on September 25, 2026 and Interval Timer One on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*