# StackTrax vs Peptide Tracker

The clearest difference is update cadence: StackTrax at daily against Peptide Tracker's weekly. StackTrax also leads on iOS requirement (16.0 vs 18.0). Peptide Tracker's advantage is ratings volume (22 vs 7). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. StackTrax sells 2 in-app purchases, starting at $4.99 per month and Peptide Tracker sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for StackTrax against 4.9 for Peptide Tracker. Both are backed by a comparable volume of ratings — 7 and 22 respectively. Written reviews are what separate them: 100% of StackTrax's written reviews are positive against 92% of Peptide Tracker's.

StackTrax ships an update daily, Peptide Tracker weekly. The most recent releases landed on September 18, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | StackTrax | Peptide Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/stacktrax-peptide-tracker/id6769495613/reviews)** | [4.9 (22 ratings)](https://appshunter.io/ios/app/peptide-tracker-openpep/id6771703417/reviews) |
| Number of ratings | 7 | **22** |
| Positive reviews | **100.0% of reviews** | 92.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Weekly |
| Monetization | Freemium | Freemium |
| Size | 32 MB | 20 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Isaiah Deutsch](https://appshunter.io/developer/1896663496) | [Antonio Ferrara](https://appshunter.io/developer/1614412867) |

## What reviewers say

### 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 |


### Peptide Tracker

[App page](https://appshunter.io/ios/app/peptide-tracker-openpep/id6771703417)

Organize, schedule, and calculate your peptide routines with this private tracker. Log dosages, instantly calculate reconstitution mixtures, and set custom schedules to ensure you never miss a dose. Designed for offline use, it simplifies managing your protocols.

**Highlights:** Reconstitution helper for water ratios, Customizable scheduling, Daily dose tracking with notes, Private and secure offline data storage, Instant mixture calculations

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $7.99 | per 7 days |
| Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is StackTrax free?

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

### Is Peptide Tracker free?

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

### Which has better reviews, StackTrax or Peptide Tracker?

StackTrax is rated higher. StackTrax averages 5.0 out of 5 from 7 ratings, while Peptide Tracker averages 4.9 from 22 ratings.

### Do StackTrax or Peptide Tracker have ads?

Neither StackTrax nor Peptide Tracker shows ads.

### Which is updated more often, StackTrax or Peptide Tracker?

StackTrax ships an update daily, and Peptide Tracker weekly. Most recently, StackTrax was updated on September 18, 2026 and Peptide Tracker on September 29, 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.*