# KEEP PLANK vs HIIT Timer

The clearest difference is update cadence: KEEP PLANK at daily against HIIT Timer's every 5 weeks. KEEP PLANK also leads on iOS requirement (16.0 vs 26.0). On price, ads, 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.

KEEP PLANK ships an update daily, HIIT Timer every 5 weeks. The most recent releases landed on September 18, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | KEEP PLANK | HIIT Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 5 weeks |
| Size | 20 MB | 36 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [tatsuyuki shibuya](https://appshunter.io/developer/1639823174) | [Caprio Lab](https://appshunter.io/developer/1841174043) |

## What reviewers say

### KEEP PLANK

[App page](https://appshunter.io/ios/app/keep-plank/id6670267717)

**Features:** macOS Compatibility

**In-app purchases:** none


### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer-simple-timer/id6752818078)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KEEP PLANK free?

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

### Is HIIT Timer free?

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

### Do KEEP PLANK or HIIT Timer have ads?

Both KEEP PLANK and HIIT Timer show ads.

### Which is updated more often, KEEP PLANK or HIIT Timer?

KEEP PLANK ships an update daily, and HIIT Timer every 5 weeks. Most recently, KEEP PLANK was updated on September 18, 2026 and HIIT Timer on September 16, 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.*