# Muscle Memory vs 膳

The clearest difference is ads: 膳 at none against Muscle Memory's shown. Muscle Memory's advantage is iOS requirement (15.5 vs 18.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Muscle Memory sells 1 in-app purchase, starting at $2.99 per month and 膳 sells 1 in-app purchase, starting at $5.99 per year. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 4 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Muscle Memory | 膳 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | Every 4 days |
| Size | 123 MB | 8 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [hiroto hashimoto](https://appshunter.io/developer/1884572209) | [Kunihiko Ayuha](https://appshunter.io/developer/6779509130) |

## What reviewers say

### Muscle Memory

[App page](https://appshunter.io/ios/app/muscle-memory-workout-log/id6760459152)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $2.99 | per month |


### 膳

[App page](https://appshunter.io/ios/app/zen/id6788764201)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン | $5.99 | per year |


## Frequently asked questions

### Is Muscle Memory free?

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

### Is 膳 free?

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

### Do Muscle Memory or 膳 have ads?

Muscle Memory shows ads; 膳 does not.

### Which is updated more often, Muscle Memory or 膳?

Muscle Memory ships an update every 4 days, and 膳 every 4 days. Most recently, Muscle Memory was updated on October 25, 2026 and 膳 on October 25, 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.*