# StackTrackr vs Peptide Tracker Calculator App

The clearest difference is update cadence: Peptide Tracker Calculator App at every 3 days against StackTrackr's weekly. Peptide Tracker Calculator App also leads on iOS requirement (15.1 vs 26.0). StackTrackr's advantage is ratings volume (4 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. StackTrackr sells 2 in-app purchases, starting at $4.99 per month and Peptide Tracker Calculator App sells 3 in-app purchases, starting at $1.99 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 StackTrackr against 5.0 for Peptide Tracker Calculator App. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

StackTrackr ships an update weekly, Peptide Tracker Calculator App every 3 days. The most recent releases landed on September 29, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | StackTrackr | Peptide Tracker Calculator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/stacktrackr-peptide-tracker/id6759632056/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/peptide-tracker-calculator-app/id6766099370/reviews) |
| Number of ratings | **4** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Freemium | Freemium |
| Size | 59 MB | 49 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [PeakHaus Fitness LLC](https://appshunter.io/developer/1879898877) | [Erfan Ahmadi](https://appshunter.io/developer/1811688807) |

## 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 Calculator App

[App page](https://appshunter.io/ios/app/peptide-tracker-calculator-app/id6766099370)

Organize your peptide tracking with dose logs, schedule reminders, research references, and personal progress. Track injections, estimate active levels, and integrate with Apple Health for a comprehensive wellness overview. This app provides a structured, private workspace for managing peptide-related information.

**Highlights:** Peptide dose tracking, Half-life based active level estimates, Injection site tracking, Dose schedules and reminders, Peptide research library, Apple Health integration, PDF data export

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Pack | $1.99 | per 7 days |
| Pro Pack | $4.99 | per month |
| Pro Pack | $49.99 | per year |


## Frequently asked questions

### Is StackTrackr free?

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

### Is Peptide Tracker Calculator App free?

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

### Which has better reviews, StackTrackr or Peptide Tracker Calculator App?

StackTrackr and Peptide Tracker Calculator App are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do StackTrackr or Peptide Tracker Calculator App have ads?

Neither StackTrackr nor Peptide Tracker Calculator App shows ads.

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

StackTrackr ships an update weekly, and Peptide Tracker Calculator App every 3 days. Most recently, StackTrackr was updated on September 29, 2026 and Peptide Tracker Calculator App on September 27, 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.*