# Peptide Stack OS vs Vial

The clearest difference is device support: Peptide Stack OS at 3 against Vial's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Peptide Stack OS | Vial |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 53 MB | 52 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Leverage Ventures Limited Liability Company](https://appshunter.io/developer/1868627132) | [Daan Koeman](https://appshunter.io/developer/1891048034) |

## What reviewers say

### Peptide Stack OS

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

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

**In-app purchases:** none


### Vial

[App page](https://appshunter.io/ios/app/vial-peptide-and-dose-tracker/id6786065166)

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

**In-app purchases:** none


## Frequently asked questions

### Is Peptide Stack OS free?

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

### Is Vial free?

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

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

Neither Peptide Stack OS nor Vial 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.*