# StackTrackr vs Peptide Tracker

The clearest difference is in-app purchases: Peptide Tracker at none against StackTrackr's 2. Peptide Tracker also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

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

StackTrackr ships an update weekly, Peptide Tracker every 4 days. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | StackTrackr | Peptide Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/stacktrackr-peptide-tracker/id6759632056/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 60 MB | 9 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [PeakHaus Fitness LLC](https://appshunter.io/developer/1879898877) | [Huong Do Lien](https://appshunter.io/developer/6800345381) |

## What reviewers say

### StackTrackr

[App page](https://appshunter.io/ios/app/stacktrackr-peptide-tracker/id6759632056)

This app helps manage hormone therapy, peptide protocols, and research compounds. It calculates doses, tracks injections, manages vial inventory, and builds custom schedules. Log doses quickly from your watch or widgets, and access a database of verified compounds.

**Highlights:** Reconstitution calculator, Dose tracking and logging, Multi-compound protocol management, Vial inventory management, Streak tracking, Verified compound database, Apple Health integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro — Monthly | $4.99 | per month |
| Pro — 6 Months | $24.99 | per 6 months |


### Peptide Tracker

[App page](https://appshunter.io/ios/app/peptide-tracker-vials-and-log/id6807466145)

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

**In-app purchases:** none


## Frequently asked questions

### Is StackTrackr free?

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

### Is Peptide Tracker free?

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

### Do StackTrackr or Peptide Tracker have ads?

Neither StackTrackr nor Peptide Tracker shows ads.

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

StackTrackr ships an update weekly, and Peptide Tracker every 4 days. Most recently, StackTrackr was updated on October 14, 2026 and Peptide Tracker on September 30, 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.*