# Peptide Stack OS vs VialTrack

The clearest difference is device support: Peptide Stack OS at 3 against VialTrack's 1. Peptide Stack OS also leads on iOS requirement (15.1 vs 18.0). On price, 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.

## The numbers

| Metric | Peptide Stack OS | VialTrack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 53 MB | 12 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Leverage Ventures Limited Liability Company](https://appshunter.io/developer/1868627132) | [Todd Cavanaugh](https://appshunter.io/developer/1876634873) |

## 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


### VialTrack

[App page](https://appshunter.io/ios/app/vialtrack-peptide-tracker/id6788864051)

**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 VialTrack free?

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

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

Neither Peptide Stack OS nor VialTrack shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*