# HIIT Timer vs Ardo

The clearest difference is iOS requirement: HIIT Timer at 13.0 against Ardo's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. HIIT Timer sells 1 one-off in-app purchase and Ardo sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HIIT Timer ships an update weekly, Ardo every 6 days. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | HIIT Timer | Ardo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Size | 44 MB | 17 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Junhyong Park](https://appshunter.io/developer/1847163468) | [Romana Samcova](https://appshunter.io/developer/1799133576) |

## What reviewers say

### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer-tabata-and-boxing/id6755115302)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $1.99 | one-time |


### Ardo

[App page](https://appshunter.io/ios/app/ardo-ai-interval-timer/id6782892588)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ardo Pro | $3.99 | one-time |


## Frequently asked questions

### Is HIIT Timer free?

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

### Is Ardo free?

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

### Do HIIT Timer or Ardo have ads?

Neither HIIT Timer nor Ardo shows ads.

### Which is updated more often, HIIT Timer or Ardo?

HIIT Timer ships an update weekly, and Ardo every 6 days. Most recently, HIIT Timer was updated on October 13, 2026 and Ardo on October 9, 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.*