# Protocol vs Protocol

The clearest difference is update cadence: Protocol at every 2 days against Protocol's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Protocol sells 1 in-app purchase, starting at $3.99 per month and Protocol sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Protocol ships an update every 3 weeks, Protocol every 2 days. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Protocol | Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protocol-peptides/id6764390731/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 34 MB | 47 MB |
| Requires iOS | **16.6** | 17.5 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [S6 Industries LLC](https://appshunter.io/developer/1095430819) | [Alexandre Masmejean](https://appshunter.io/developer/1895978437) |

## What reviewers say

### Protocol

[App page](https://appshunter.io/ios/app/protocol-fitness-app/id6758923033)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protocol Pro | $3.99 | per month |


### Protocol

[App page](https://appshunter.io/ios/app/protocol-peptides/id6764390731)

This app helps users meticulously track peptide cycles, logging each injection with customizable details. It provides comprehensive guides on reconstitution, injection techniques, and safety, alongside personalized reminders and progress tracking.

**Highlights:** Log peptide injections with customizable details, Curated library of 25+ compounds, Add custom compounds and edit entries, Streak counter and dose history, Per-peptide reminders with native iOS notifications, Built-in safety and how-to guides, Personalized onboarding based on goals and experience

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protocol Pro | $1.99 | per 7 days |
| Protocol Pro | $39.99 | per year |


## Frequently asked questions

### Is Protocol free?

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

### Is Protocol free?

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

### Do Protocol or Protocol have ads?

Neither Protocol nor Protocol shows ads.

### Which is updated more often, Protocol or Protocol?

Protocol ships an update every 3 weeks, and Protocol every 2 days. Most recently, Protocol was updated on October 14, 2026 and Protocol on October 24, 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.*