# Protein Rush vs Slapping Penguin

The clearest difference is update cadence: Slapping Penguin at every 2 days against Protein Rush's monthly. Slapping Penguin also leads on iOS requirement (12.0 vs 16.6). 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.

Protein Rush ships an update monthly, Slapping Penguin every 2 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Protein Rush | Slapping Penguin |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 2 days** |
| Size | 23 MB | 53 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [takeshi ogawa](https://appshunter.io/developer/1676749157) | [Aurelien YOL](https://appshunter.io/developer/6783976948) |

## What reviewers say

### Protein Rush

[App page](https://appshunter.io/ios/app/protein-rush/id6746702965)

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

**In-app purchases:** none


### Slapping Penguin

[App page](https://appshunter.io/ios/app/slapping-penguin/id6783976946)

**In-app purchases:** none


## Frequently asked questions

### Is Protein Rush free?

Protein Rush is free to download, with no in-app purchases.

### Is Slapping Penguin free?

Slapping Penguin is free to download, with no in-app purchases.

### Do Protein Rush or Slapping Penguin have ads?

Both Protein Rush and Slapping Penguin show ads.

### Which is updated more often, Protein Rush or Slapping Penguin?

Protein Rush ships an update monthly, and Slapping Penguin every 2 days. Most recently, Protein Rush was updated on October 25, 2026 and Slapping Penguin on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*