# Peptide & TRT Tracker vs StackTrax

The clearest difference is update cadence: StackTrax at daily against Peptide & TRT Tracker's weekly. StackTrax also leads on rating (5.0 vs 4.8) and review sentiment (100% vs 89%). Peptide & TRT Tracker's advantage is ratings volume (172 vs 7). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Peptide & TRT Tracker sells 19 in-app purchases, starting at $4.99 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. That said, the two scores are not equally well evidenced: Peptide & TRT Tracker has 172 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 89% of Peptide & TRT Tracker's written reviews are positive against 100% of StackTrax's.

Peptide & TRT Tracker ships an update weekly, StackTrax daily. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Peptide & TRT Tracker | StackTrax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (172 ratings)](https://appshunter.io/ios/app/peptide-and-trt-tracker-optipin/id6745631936/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/stacktrax-peptide-tracker/id6769495613/reviews)** |
| Number of ratings | **172** | 7 |
| Positive reviews | 88.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 103 MB | 32 MB |
| Requires iOS | 18.1 | **16.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Vitaloom](https://appshunter.io/developer/1796722152) | [Isaiah Deutsch](https://appshunter.io/developer/1896663496) |

## What reviewers say

### Peptide & TRT Tracker

[App page](https://appshunter.io/ios/app/peptide-and-trt-tracker-optipin/id6745631936)

This app helps users track TRT, peptide therapy, and hormone optimization protocols. It offers medication reminders, injection site rotation, inventory management, and health marker trend analysis. All data is stored securely on your device for privacy.

**Highlights:** Smart injection scheduling, Discreet medication reminders, Advanced peptide calculators, Injection site rotation tracking, Comprehensive health tracking, Custom protocol creation, Inventory management

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $4.99 | per month |
| Yearly subscription | $9.99 | per year |
| Yearly subscription | $19.99 | per year |
| Yearly subscription | $19.99 | per year |
| Yearly subscription | $24.99 | per year |
| Yearly subscription | $24.99 | per year |
| Yearly subscription | $34.99 | per year |
| Annual Sub | $39.99 | per year |
| Annual Sub | $39.99 | per year |
| OptiInsight 1 Credit | $1.19 | one-time |
| OptiInsight 5 Credits | $4.99 | one-time |
| Lifetime access | $9.99 | one-time |
| Lifetime access | $14.99 | one-time |
| Lifetime access | $19.99 | one-time |
| Lifetime access | $24.99 | one-time |
| Lifetime access | $29.99 | one-time |
| Lifetime access | $34.99 | one-time |
| Lifetime access | $39.99 | one-time |
| Lifetime access | $74.99 | one-time |


### 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 Peptide & TRT Tracker free?

Peptide & TRT Tracker 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, Peptide & TRT Tracker or StackTrax?

StackTrax is rated higher. Peptide & TRT Tracker averages 4.8 out of 5 from 172 ratings, while StackTrax averages 5.0 from 7 ratings.

### Do Peptide & TRT Tracker or StackTrax have ads?

Neither Peptide & TRT Tracker nor StackTrax shows ads.

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

Peptide & TRT Tracker ships an update weekly, and StackTrax daily. Most recently, Peptide & TRT Tracker was updated on October 12, 2026 and StackTrax on October 6, 2026.

---

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