# COMPOUND vs Peptide Protocol

The clearest difference is monetization model: COMPOUND at free with in-app purchases against Peptide Protocol's subscription. COMPOUND also leads on ads (none vs shown). Peptide Protocol's advantage is ratings volume (14 vs 4). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. COMPOUND sells 5 in-app purchases, starting at $6.99 per 7 days and Peptide Protocol sells 11 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for COMPOUND against 5.0 for Peptide Protocol. Both are backed by a comparable volume of ratings — 4 and 14 respectively.

COMPOUND ships an update every 9 days, Peptide Protocol every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | COMPOUND | Peptide Protocol |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/compound-peptide-calculator/id6762041256/reviews) | [5.0 (14 ratings)](https://appshunter.io/ios/app/peptide-protocol-dose-tracker/id6762055081/reviews) |
| Number of ratings | 4 | **14** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Every 5 days** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 52 MB | 97 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 12+ |
| Developer | [Torben Nils Seidler](https://appshunter.io/developer/1834241692) | [Ludovic PUAUD](https://appshunter.io/developer/1874004900) |

## What reviewers say

### COMPOUND

[App page](https://appshunter.io/ios/app/compound-peptide-calculator/id6762041256)

This app provides advanced tracking and analysis for peptide and TRT protocols. It uses AI to analyze interactions, correlate side effects with dosing, and scan bloodwork results. Manage complex stacks with smart reconstitution, a comprehensive database, and interactive pharmacokinetics.

**Highlights:** AI Stack Analyzer for interaction warnings, Side-Effect Correlation Engine, Bloodwork OCR Scanner, Smart Reconstitution calculations, 42-Compound Database with research links, Protocol AI Chat for personalized advice, Interactive Stack Pharmacokinetics visualization

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Compound Pro · Weekly | $6.99 | per 7 days |
| Compound Pro · Quarterly | $24.99 | per 3 months |
| Compound Pro · Yearly DISCOUNTED | $34.99 | per year |
| Compound Pro · Yearly | $49.99 | per year |
| COMPOUND Pro · Yearly | $69.99 | per year |


### Peptide Protocol

[App page](https://appshunter.io/ios/app/peptide-protocol-dose-tracker/id6762055081)

This app helps users track peptide doses, manage vial inventory, and monitor weekly insights like energy, sleep, and mood. It offers a reconstitution calculator and features for biohackers and longevity enthusiasts, with local-first data storage for privacy.

**Highlights:** Dose logging for peptides, Reconstitution calculation helper, Vial inventory with refill reminders, Weekly insight charts (energy, sleep, mood, weight), Protocol pausing and auto-resuming, Injection site rotation, Side-effect pattern review, Local-first data storage

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Peptide Protocol Pro | $4.99 | per 7 days |
| Pro Monthly | $7.99 | per month |
| Pro Monthly | $9.99 | per month |
| PeptideProtocol Pro Monthly | $9.99 | per month |
| Pro Yearly — Special Offer | $34.99 | per year |
| Pro Yearly | $44.99 | per year |
| Pro Yearly | $59.99 | per year |
| Pro Yearly Trial | $59.99 | per year |
| Pro Yearly — First Year Offer | $59.99 | per year |
| Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is COMPOUND free?

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

### Is Peptide Protocol free?

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

### Which has better reviews, COMPOUND or Peptide Protocol?

COMPOUND and Peptide Protocol are both rated 5.0 out of 5 on the App Store, from 4 and 14 ratings respectively.

### Do COMPOUND or Peptide Protocol have ads?

Peptide Protocol shows ads; COMPOUND does not.

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

COMPOUND ships an update every 9 days, and Peptide Protocol every 5 days. Most recently, COMPOUND was updated on October 24, 2026 and Peptide 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.*