# GainMatrix vs Protein Tracker

The clearest difference is iOS requirement: GainMatrix at 15.1 against Protein Tracker's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. GainMatrix sells 4 in-app purchases, starting at $2.99 per month and Protein Tracker sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 4, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | GainMatrix | Protein Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 64 MB | 65 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Ulas Uzunyayla](https://appshunter.io/developer/1858691953) | [Ruslan Shadura](https://appshunter.io/developer/1817830161) |

## What reviewers say

### GainMatrix

[App page](https://appshunter.io/ios/app/gainmatrix-ai-workout-tracker/id6756138508)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GainMatrix Pro | $2.99 | per month |
| GainMatrix Pro | $4.99 | per month |
| GainMatrix Pro | $17.99 | per year |
| GainMatrix Pro | $24.99 | per year |


### 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 GainMatrix free?

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

### Is Protein Tracker free?

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

### Do GainMatrix or Protein Tracker have ads?

Neither GainMatrix nor Protein Tracker shows ads.

### Which is updated more often, GainMatrix or Protein Tracker?

GainMatrix ships an update weekly, and Protein Tracker weekly. Most recently, GainMatrix was updated on October 4, 2026 and Protein Tracker on October 9, 2026.

---

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