# マッスルロック vs RepKey

The clearest difference is in-app purchases: マッスルロック at none against RepKey's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. RepKey sells 3 in-app purchases, starting at $4.99 per 7 days. マッスルロック asks for nothing beyond the download.

## The numbers

| Metric | マッスルロック | RepKey |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 60 MB | 4 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [yuto kobayashi](https://appshunter.io/developer/1604355732) | [Koya Nambo](https://appshunter.io/developer/1633778504) |

## What reviewers say

### マッスルロック

[App page](https://appshunter.io/ios/app/id6749794210)

This app helps combat smartphone addiction by replacing the urge to open locked apps with physical exercises. Users complete custom workouts to unlock their chosen apps for a limited time, building focus and physical strength simultaneously.

**Highlights:** Replace app usage with custom workouts, Randomized exercise missions, Timed app unlocking, Track workout progress and screen time, Customizable exercise routines, Schedule-based app locking

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

**In-app purchases:** none


### RepKey

[App page](https://appshunter.io/ios/app/repkey/id6760356069)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $14.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is マッスルロック free?

マッスルロック is free to download, with no in-app purchases.

### Is RepKey free?

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

### Do マッスルロック or RepKey have ads?

Neither マッスルロック nor RepKey shows ads.

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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.*