# MyPepTracker vs Stacker

The clearest difference is in-app purchases: MyPepTracker at none against Stacker's 1. MyPepTracker also leads on ads (none vs shown). Stacker's advantage is update cadence (every 4 days vs every 4 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Stacker sells 1 in-app purchase, starting at $69.99 per year. MyPepTracker asks for nothing beyond the download.

MyPepTracker ships an update every 4 weeks, Stacker every 4 days. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | MyPepTracker | Stacker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (12 ratings)](https://appshunter.io/ios/app/stacker-peptide-tracker/id6776001253/reviews)** |
| Number of ratings | — | **12** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 49 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Gregory Roy](https://appshunter.io/developer/1892922555) | [Above Capital LLC](https://appshunter.io/developer/6776001255) |

## What reviewers say

### MyPepTracker

[App page](https://appshunter.io/ios/app/mypeptracker/id6762103081)

**In-app purchases:** none


### Stacker

[App page](https://appshunter.io/ios/app/stacker-peptide-tracker/id6776001253)

This app helps you discover, dose, and track peptide protocols for various health goals. It offers curated stacks, personalized schedules, and progress tracking with reminders. Features include a reconstitution calculator and an AI assistant for protocol summaries.

**Highlights:** Personalized stack building, Curated stacks with dosage guides, Dose and progress tracking, Smart dosing schedules and reminders, Reconstitution calculator, Expert-vetted peptide library, AI peptide assistant (Pro)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacker Pro | $69.99 | per year |


## Frequently asked questions

### Is MyPepTracker free?

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

### Is Stacker free?

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

### Do MyPepTracker or Stacker have ads?

Stacker shows ads; MyPepTracker does not.

### Which is updated more often, MyPepTracker or Stacker?

MyPepTracker ships an update every 4 weeks, and Stacker every 4 days. Most recently, MyPepTracker was updated on September 19, 2026 and Stacker on September 14, 2026.

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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.*