# PepStack vs Peptide Protocol+

The clearest difference is in-app purchases: Peptide Protocol+ at none against PepStack's 2. Peptide Protocol+ also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PepStack sells 2 in-app purchases, starting at $4.99 per month. Peptide Protocol+ asks for nothing beyond the download.

## The numbers

| Metric | PepStack | Peptide Protocol+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/peptide-protocol-plus/id6789688925/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Daily |
| Monetization | — | Free |
| Size | 9 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Son, LLC](https://appshunter.io/developer/1892058935) | [JUSTIN MICHAEL CIFELLI](https://appshunter.io/developer/6789688927) |

## What reviewers say

### PepStack

[App page](https://appshunter.io/ios/app/pepstack-peptide-calculator/id6761916679)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepStack Pro Monthly | $4.99 | per month |
| PepStack Pro Annual | $29.99 | per year |


### Peptide Protocol+

[App page](https://appshunter.io/ios/app/peptide-protocol-plus/id6789688925)

This app helps researchers manage peptide cycles with detailed protocol building, smart reminders, and progress tracking. It includes a built-in library for quick reference and prioritizes user privacy with local data storage and PIN protection.

**Highlights:** Build peptide cycles with dosage and frequency, Smart dose reminders, Review cycle history and add notes, Built-in peptide library, Local data storage and PIN protection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PepStack free?

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

### Is Peptide Protocol+ free?

Peptide Protocol+ is free to download, with no in-app purchases.

### Do PepStack or Peptide Protocol+ have ads?

Neither PepStack nor Peptide Protocol+ shows ads.

---

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