# Osa studio vs Protein Tracker

The clearest difference is in-app purchases: Osa studio at none against Protein Tracker's 2. Osa studio also leads on iOS requirement (15.1 vs 18.6). Protein Tracker's advantage is device support. On price there is nothing between them.

Both are free to download. Protein Tracker sells 2 in-app purchases, starting at $4.99 per month. Osa studio asks for nothing beyond the download.

## The numbers

| Metric | Osa studio | Protein Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Weekly |
| Size | 52 MB | 65 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | — | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [OSA studio](https://appshunter.io/developer/1887297498) | [Ruslan Shadura](https://appshunter.io/developer/1817830161) |

## What reviewers say

### Osa studio

[App page](https://appshunter.io/ios/app/osa-studio/id6761013524)

**In-app purchases:** none


### Protein Tracker

[App page](https://appshunter.io/ios/app/protein-tracker-gramli/id6797191475)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $9.99 | per year |


## Frequently asked questions

### Is Osa studio free?

Osa studio is free to download, with no in-app purchases.

### Is Protein Tracker free?

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

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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.*