# COMPOUND vs Peptide Vault

The clearest difference is monetization model: COMPOUND at free with in-app purchases against Peptide Vault's subscription. Peptide Vault's advantage is device support (3 vs 1). On price, rating, ratings volume and update cadence 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 Vault sells 15 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 Vault. Both are backed by a comparable volume of ratings — 4 and 9 respectively.

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

## The numbers

| Metric | COMPOUND | Peptide Vault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/compound-peptide-calculator/id6762041256/reviews) | [5.0 (9 ratings)](https://appshunter.io/ios/app/peptide-vault-peptide-tracker/id6762064613/reviews) |
| Number of ratings | 4 | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Weekly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 52 MB | 56 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Torben Nils Seidler](https://appshunter.io/developer/1834241692) | [Jacob Teague](https://appshunter.io/developer/1891391911) |

## 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 Vault

[App page](https://appshunter.io/ios/app/peptide-vault-peptide-tracker/id6762064613)

Log peptide doses, track injection sites, and manage custom regimens. Access a reference library of over 50 peptides and a reconstitution calculator. All data is stored privately on your device.

**Highlights:** Dose logging, Injection site rotation, Custom regimen building, Compound overlap reporting, Peptide reference library, Reconstitution calculator, On-device data storage

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptide Vault Pro Weekly | $4.99 | per 7 days |
| Peptide Vault Pro Monthly | $9.99 | per month |
| Peptide Vault Pro Monthly | $12.99 | per month |
| Peptide Vault Pro Monthly | $14.99 | per month |
| Pro Annual | $29.99 | per year |
| Pro Annual — 7 Days Free | $29.99 | per year |
| Pro Annual — 14 Days Free | $29.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual | $39.99 | per year |
| Pro Annual — 7 Days Free | $39.99 | per year |
| Pro Annual — 14 Days Free | $39.99 | per year |
| Pro Annual — 14 Days Free | $49.99 | per year |
| Pro Annual | $49.99 | per year |
| Pro Annual — 7 Days Free | $49.99 | per year |
| Peptide Vault Pro | $69.99 | per year |


## Frequently asked questions

### Is COMPOUND free?

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

### Is Peptide Vault free?

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

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

COMPOUND and Peptide Vault are both rated 5.0 out of 5 on the App Store, from 4 and 9 ratings respectively.

### Do COMPOUND or Peptide Vault have ads?

Neither COMPOUND nor Peptide Vault shows ads.

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

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