# RPT vs PRO.TEIN

The clearest difference is update cadence: PRO.TEIN at every 6 days against RPT's every 2 months. RPT's advantage is iOS requirement (18.4 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. RPT sells 1 one-off in-app purchase and PRO.TEIN sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

RPT ships an update every 2 months, PRO.TEIN every 6 days. The most recent releases landed on October 28, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | RPT | PRO.TEIN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 4 MB | 15 MB |
| Requires iOS | **18.4** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael Moore](https://appshunter.io/developer/1123892964) | [Piotr Sirek](https://appshunter.io/developer/1763583881) |

## What reviewers say

### RPT

[App page](https://appshunter.io/ios/app/rpt-reverse-pyramid-training/id6745407020)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RPT Pro Lifetime | $9.99 | one-time |


### PRO.TEIN

[App page](https://appshunter.io/ios/app/protein-protein-tracker/id6798395288)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO.TEIN Plus Weekly | $3.99 | per 7 days |
| Plus Annual (Special Offer) | $24.99 | per year |
| PRO.TEIN Plus Annual | $39.99 | per year |
| PRO.TEIN Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is RPT free?

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

### Is PRO.TEIN free?

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

### Do RPT or PRO.TEIN have ads?

Neither RPT nor PRO.TEIN shows ads.

### Which is updated more often, RPT or PRO.TEIN?

RPT ships an update every 2 months, and PRO.TEIN every 6 days. Most recently, RPT was updated on October 28, 2026 and PRO.TEIN on October 23, 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.*