# MyPep vs StackTrax

The clearest difference is update cadence: StackTrax at daily against MyPep's every 6 days. StackTrax also leads on rating (5.0 vs 4.8) and iOS requirement (16.0 vs 26.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. MyPep sells 2 in-app purchases, starting at $9.99 per month and StackTrax sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

StackTrax holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 10 and 7 respectively.

MyPep ships an update every 6 days, StackTrax daily. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | MyPep | StackTrax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (10 ratings)](https://appshunter.io/ios/app/mypep-peptide-tracker/id6769051837/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/stacktrax-peptide-tracker/id6769495613/reviews)** |
| Number of ratings | **10** | 7 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Daily** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 21 MB | 32 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 17+ |
| Developer | [Blazej Sawicki](https://appshunter.io/developer/1803929355) | [Isaiah Deutsch](https://appshunter.io/developer/1896663496) |

## What reviewers say

### MyPep

[App page](https://appshunter.io/ios/app/mypep-peptide-tracker/id6769051837)

This app helps you privately track medications, peptides, and GLP-1 protocols. Log doses, calculate reconstitutions, and visualize your progress with smart schedules and reminders. Keep your routine organized without manual tracking.

**Highlights:** Medication and peptide logging, Reconstitution calculator, Smart schedules and reminders, Pharmacokinetic estimator, Injection site tracker, Dose history calendar, Weight and progress photo logging

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $9.99 | per month |
| 1 Year subscription | $39.99 | per year |


### StackTrax

[App page](https://appshunter.io/ios/app/stacktrax-peptide-tracker/id6769495613)

Track peptide protocols and GLP-1 titrations with detailed logging, reminders, and injection site rotation. Access a research library and integrate with Oura for comprehensive health insights. Includes nutrition tracking and an AI protocol importer.

**Highlights:** Peptide and GLP-1 tracking, Dose logging and reminders, Injection site rotation, Research library with compound guides, Oura integration, AI Protocol Importer, Nutrition tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $4.99 | per month |
| Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is MyPep free?

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

### Is StackTrax free?

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

### Which has better reviews, MyPep or StackTrax?

StackTrax is rated higher. MyPep averages 4.8 out of 5 from 10 ratings, while StackTrax averages 5.0 from 7 ratings.

### Do MyPep or StackTrax have ads?

Neither MyPep nor StackTrax shows ads.

### Which is updated more often, MyPep or StackTrax?

MyPep ships an update every 6 days, and StackTrax daily. Most recently, MyPep was updated on September 21, 2026 and StackTrax on September 18, 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.*