# おむすび Powered by keymoti vs Protein Ace

The clearest difference is in-app purchases: おむすび Powered by keymoti at none against Protein Ace's 2. Protein Ace's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Protein Ace sells 2 in-app purchases, starting at $2.99 per 7 days. おむすび Powered by keymoti asks for nothing beyond the download.

おむすび Powered by keymoti ships an update every 5 weeks, Protein Ace every 2 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | おむすび Powered by keymoti | Protein Ace |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Size | 16 MB | 49 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CODE7, K.K.](https://appshunter.io/developer/1355962964) | [ProductiveTap](https://appshunter.io/developer/430553438) |

## What reviewers say

### おむすび Powered by keymoti

[App page](https://appshunter.io/ios/app/powered-by-keymoti/id1497843737)

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

**In-app purchases:** none


### Protein Ace

[App page](https://appshunter.io/ios/app/protein-ace-protein-tracker/id6761253696)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $2.99 | per 7 days |
| Premium Yearly | $29.99 | per year |


## Frequently asked questions

### Is おむすび Powered by keymoti free?

おむすび Powered by keymoti is free to download, with no in-app purchases.

### Is Protein Ace free?

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

### Do おむすび Powered by keymoti or Protein Ace have ads?

Neither おむすび Powered by keymoti nor Protein Ace shows ads.

### Which is updated more often, おむすび Powered by keymoti or Protein Ace?

おむすび Powered by keymoti ships an update every 5 weeks, and Protein Ace every 2 weeks. Most recently, おむすび Powered by keymoti was updated on November 7, 2026 and Protein Ace on November 5, 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.*