# Compound vs PepStash

The clearest difference is update cadence: PepStash at every 3 days against Compound's weekly. Compound's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Compound ships an update weekly, PepStash every 3 days. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Compound | PepStash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pepstash/id6760975200/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | — | Free |
| Size | 74 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Duffle Wallet LLC](https://appshunter.io/developer/1843934113) | [Aaron Voges](https://appshunter.io/developer/1866792993) |

## 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


### PepStash

[App page](https://appshunter.io/ios/app/pepstash/id6760975200)

Manage your peptide inventory, track costs, and log doses with this personal companion app. It helps calculate concentrations, suggests ideal water amounts, and syncs data across household devices via iCloud for seamless sharing and reminders.

**Highlights:** Peptide inventory management, Cost per milligram calculation, Reconstitution concentration calculator, Dose logging with vial tracking, Household data syncing via iCloud, Dose reminders and alerts, Purity test result linking

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

**In-app purchases:** none


## Frequently asked questions

### Is Compound free?

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

### Is PepStash free?

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

### Do Compound or PepStash have ads?

Neither Compound nor PepStash shows ads.

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

Compound ships an update weekly, and PepStash every 3 days. Most recently, Compound was updated on September 20, 2026 and PepStash on September 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.*