# PepX vs Peptide Stack OS

PepX and Peptide Stack OS are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | PepX | Peptide Stack OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 130 MB | 53 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Vinicius Ramos Pinto](https://appshunter.io/developer/1630219233) | [Leverage Ventures Limited Liability Company](https://appshunter.io/developer/1868627132) |

## What reviewers say

### PepX

[App page](https://appshunter.io/ios/app/pepx-peptide-tracker/id6763190667)

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

**In-app purchases:** none


### Peptide Stack OS

[App page](https://appshunter.io/ios/app/peptide-stack-os/id6766155644)

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

**In-app purchases:** none


## Frequently asked questions

### Is PepX free?

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

### Is Peptide Stack OS free?

Peptide Stack OS is free to download, with no in-app purchases.

### Do PepX or Peptide Stack OS have ads?

Neither PepX nor Peptide Stack OS shows ads.

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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.*