# PeptideStack vs Peptide Stack OS

The clearest difference is in-app purchases: Peptide Stack OS at none against PeptideStack's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PeptideStack sells 3 in-app purchases, starting at $4.99 per month. Peptide Stack OS asks for nothing beyond the download.

## The numbers

| Metric | PeptideStack | Peptide Stack OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 38 MB | 53 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Enes Koc](https://appshunter.io/developer/1876640525) | [Leverage Ventures Limited Liability Company](https://appshunter.io/developer/1868627132) |

## What reviewers say

### PeptideStack

[App page](https://appshunter.io/ios/app/peptidestack-peptide-tracker/id6763878251)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PeptideStack Premium Monthly | $4.99 | per month |
| PeptideStack Premium Annual | $29.99 | per year |
| PeptideStack Premium Lifetime | $79.99 | one-time |


### 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 PeptideStack free?

PeptideStack is free to download, with in-app purchases available.

### Is Peptide Stack OS free?

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

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

Neither PeptideStack 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.*