# Compound vs PeptidePilot

The clearest difference is iOS requirement: Compound at 15.1 against PeptidePilot's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Compound | PeptidePilot |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Size | 74 MB | 10 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 17+ | 17+ |
| Developer | [Duffle Wallet LLC](https://appshunter.io/developer/1843934113) | [Caden Bartlett](https://appshunter.io/developer/1889384537) |

## What reviewers say

### Compound

[App page](https://appshunter.io/ios/app/compound-peptide-tracker/id6759011612)

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

**In-app purchases:** none


### PeptidePilot

[App page](https://appshunter.io/ios/app/peptidepilot-peptide-tracker/id6765950284)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Compound free?

Compound is free to download, with no in-app purchases.

### Is PeptidePilot free?

PeptidePilot is free to download, with no in-app purchases.

### Do Compound or PeptidePilot have ads?

Neither Compound nor PeptidePilot shows ads.

### Which is updated more often, Compound or PeptidePilot?

Compound ships an update weekly, and PeptidePilot weekly. Most recently, Compound was updated on September 5, 2026 and PeptidePilot on September 14, 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.*