# Rounds vs HIIT Interval Timer

The clearest difference is in-app purchases: Rounds at none against HIIT Interval Timer's 1. HIIT Interval Timer's advantage is device support and iOS requirement (17.0 vs 26.2). On price there is nothing between them.

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

## The numbers

| Metric | Rounds | HIIT Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Size | 5 MB | 9 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Simon Luo](https://appshunter.io/developer/1455732464) | [Muhammad Mujahid Khan](https://appshunter.io/developer/1749120554) |

## What reviewers say

### Rounds

[App page](https://appshunter.io/ios/app/rounds-interval-timer/id6759798316)

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Rounds free?

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

### Is HIIT Interval Timer free?

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

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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.*