# Protein Ace vs ZoneOut App

The clearest difference is in-app purchases: ZoneOut App at none against Protein Ace's 2. ZoneOut App also leads on update cadence (every 4 days vs every 2 weeks). Protein Ace's advantage is ads (none vs shown). On price, 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. ZoneOut App asks for nothing beyond the download.

Protein Ace ships an update every 2 weeks, ZoneOut App every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Protein Ace | ZoneOut App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 49 MB | 60 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ProductiveTap](https://appshunter.io/developer/430553438) | [Roy Chien](https://appshunter.io/developer/6775159294) |

## What reviewers say

### 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 |


### ZoneOut App

[App page](https://appshunter.io/ios/app/zoneout-app/id6775159292)

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

**In-app purchases:** none


## Frequently asked questions

### Is Protein Ace free?

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

### Is ZoneOut App free?

ZoneOut App is free to download, with no in-app purchases.

### Do Protein Ace or ZoneOut App have ads?

ZoneOut App shows ads; Protein Ace does not.

### Which is updated more often, Protein Ace or ZoneOut App?

Protein Ace ships an update every 2 weeks, and ZoneOut App every 4 days. Most recently, Protein Ace was updated on November 5, 2026 and ZoneOut App 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.*