# HIIT Timer vs MuscleMemo

The clearest difference is in-app purchases: HIIT Timer at none against MuscleMemo's 1. MuscleMemo's advantage is update cadence (weekly vs every 5 weeks) and iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

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

HIIT Timer ships an update every 5 weeks, MuscleMemo weekly. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | HIIT Timer | MuscleMemo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 36 MB | 13 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Caprio Lab](https://appshunter.io/developer/1841174043) | [Shuto Nishiyama](https://appshunter.io/developer/1879174354) |

## What reviewers say

### HIIT Timer

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

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

**In-app purchases:** none


### MuscleMemo

[App page](https://appshunter.io/ios/app/musclememo-workout-log/id6759721047)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is HIIT Timer free?

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

### Is MuscleMemo free?

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

### Do HIIT Timer or MuscleMemo have ads?

Both HIIT Timer and MuscleMemo show ads.

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

HIIT Timer ships an update every 5 weeks, and MuscleMemo weekly. Most recently, HIIT Timer was updated on October 3, 2026 and MuscleMemo on October 4, 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.*