# PepTracker vs PepStack

The clearest difference is update cadence: PepStack at every 2 days against PepTracker's every 2 weeks. PepStack also leads on iOS requirement (15.5 vs 18). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PepTracker sells 2 in-app purchases, starting at $4.99 per month and PepStack sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

PepTracker ships an update every 2 weeks, PepStack every 2 days. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PepTracker | PepStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (413 ratings)](https://appshunter.io/ios/app/peptracker-dose-log/id6747189889/reviews)** | — |
| Number of ratings | **413** | — |
| Positive reviews | 77.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 17 MB | 85 MB |
| Requires iOS | 18 | **15.5** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Jayven Alan Villagomez Peredo](https://appshunter.io/developer/1820200864) | [Max Berktold](https://appshunter.io/developer/1596273015) |

## What reviewers say

### PepTracker

[App page](https://appshunter.io/ios/app/peptracker-dose-log/id6747189889)

This app helps users meticulously track peptide and GLP-1 medication doses. It allows for the creation of structured protocols, scheduling of injections, and calculation of precise syringe volumes. Users can monitor progress over time and receive reminders for upcoming doses.

**Highlights:** Log injection doses, Build peptide/GLP-1 protocols, Built-in dose calculator, Schedule reminders, Track progress metrics, Export logs

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Yeary | $47.99 | per year |

**What reviewers like**

- 👍 Intuitive and easy to use
- 🚀 Powerful dose calculator
- 📊 Helpful for tracking weight loss goals
- ⏰ Useful reminders for injections
- 🗂️ Organizes multiple protocols

**What reviewers complain about**

- ⚠️ Only allows mcg dosage and calculations

**Reported bugs**

- Units function not working

**Requested features**

- Support for more units of measurement
- Ability to track more than 2 protocols


### PepStack

[App page](https://appshunter.io/ios/app/pepstack-biohacking-tracker/id6760306960)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PepStack Premium (Monthly) | $2.99 | per month |
| PepStack Premium (Yearly) | $22.99 | per year |


## Frequently asked questions

### Is PepTracker free?

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

### Is PepStack free?

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

### Do PepTracker or PepStack have ads?

Neither PepTracker nor PepStack shows ads.

### Which is updated more often, PepTracker or PepStack?

PepTracker ships an update every 2 weeks, and PepStack every 2 days. Most recently, PepTracker was updated on October 2, 2026 and PepStack on September 20, 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.*