# HIIT Interval Timer vs Clear Intervals

The clearest difference is in-app purchases: Clear Intervals at none against HIIT Interval Timer's 1. Clear Intervals also leads on ads (none vs shown). HIIT Interval Timer's advantage is iOS requirement (17.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. HIIT Interval Timer sells 1 one-off in-app purchase. Clear Intervals asks for nothing beyond the download.

## The numbers

| Metric | HIIT Interval Timer | Clear Intervals |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Size | 9 MB | 13 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Mujahid Khan](https://appshunter.io/developer/1749120554) | [Dominik Drag](https://appshunter.io/developer/1728978245) |

## What reviewers say

### HIIT Interval Timer

[App page](https://appshunter.io/ios/app/hiit-interval-timer-circuit/id6806570865)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $9.99 | one-time |


### Clear Intervals

[App page](https://appshunter.io/ios/app/clear-intervals-hiit-timer/id6811099903)

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Interval Timer free?

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

### Is Clear Intervals free?

Clear Intervals is free to download, with no in-app purchases.

### Do HIIT Interval Timer or Clear Intervals have ads?

HIIT Interval Timer shows ads; Clear Intervals does not.

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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.*