# Peptide Tracker & Calculator vs PepStack

Peptide Tracker & Calculator and PepStack are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Peptide Tracker & Calculator sells 4 in-app purchases, starting at $3.99 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.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 30, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Peptide Tracker & Calculator | PepStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (548 ratings)](https://appshunter.io/ios/app/peptide-tracker-and-calculator/id6744902384/reviews)** | — |
| Number of ratings | **548** | — |
| Positive reviews | 69.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Free with in-app purchases | — |
| Size | 71 MB | 85 MB |
| Requires iOS | 16.4 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [David Dzeveckij](https://appshunter.io/developer/1808720973) | [Max Berktold](https://appshunter.io/developer/1596273015) |

## What reviewers say

### Peptide Tracker & Calculator

[App page](https://appshunter.io/ios/app/peptide-tracker-and-calculator/id6744902384)

This app helps you meticulously track and calculate peptide dosages, inventory, and injection sites. It provides smart alerts for low stock and detailed logs of your usage history for research, fitness, or therapeutic protocols. Your data is stored securely and privately on your device.

**Highlights:** Comprehensive peptide inventory management, Precise dosing log and calculation support, Intelligent injection site rotation tracking, Smart low stock alerts, Detailed dose history review, Secure local data storage

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full App Access (Monthly) | $3.99 | per month |
| Full App Access (Monthly) | $4.99 | per month |
| Full App Access (Yearly) | $19.99 | per year |
| Full App Access (Yearly) | $24.99 | per year |


### 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 Peptide Tracker & Calculator free?

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

### Is PepStack free?

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

### Do Peptide Tracker & Calculator or PepStack have ads?

Neither Peptide Tracker & Calculator nor PepStack shows ads.

### Which is updated more often, Peptide Tracker & Calculator or PepStack?

Peptide Tracker & Calculator ships an update every 2 days, and PepStack every 2 days. Most recently, Peptide Tracker & Calculator was updated on September 30, 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.*