# PepStack vs PeptidePal

The clearest difference is ads: PepStack at none against PeptidePal's shown. PepStack also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (15.5 vs 18.0). PeptidePal's advantage is chart position (#155 vs unranked). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PepStack sells 2 in-app purchases, starting at $2.99 per month and PeptidePal sells 18 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PepStack ships an update every 2 days, PeptidePal every 5 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PepStack | PeptidePal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (4.7K ratings)](https://appshunter.io/ios/app/peptidepal-peptide-tracker/id6762102880/reviews)** |
| Number of ratings | — | **4.7K** |
| Positive reviews | — | 29.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#155** |
| Size | 85 MB | 105 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Max Berktold](https://appshunter.io/developer/1596273015) | [Blank Labs LLC](https://appshunter.io/developer/1871385584) |

## What reviewers say

### 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 |


### PeptidePal

[App page](https://appshunter.io/ios/app/peptidepal-peptide-tracker/id6762102880)

**Currently charting:** #155 Top Grossing · Health & Fitness (US App Store)

This app helps users track GLP-1 medications, research peptides, and TRT. It offers a protocol builder, a comprehensive peptide library, and a reconstitution calculator with visual aids. It also includes supply alerts and injection site rotation guidance.

**Highlights:** GLP-1 shot tracking, Research peptide tracking, TRT tracking, Protocol builder, Reconstitution calculator, Vial inventory & supply alerts, Injection site rotation

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PeptidePal – Weekly | $3.99 | per 7 days |
| PeptidePal – Weekly | $4.99 | per 7 days |
| PeptidePal – Monthly | $8.99 | per month |
| PeptidePal – Monthly | $9.99 | per month |
| PeptidePal – Monthly | $11.99 | per month |
| PeptidePal – Monthly | $12.99 | per month |
| PeptidePal – Monthly | $14.99 | per month |
| PeptidePal – Yearly | $19.99 | per year |
| PeptidePal – Monthly | $19.99 | per month |
| PeptidePal – Quarterly | $29.99 | per 3 months |
| PeptidePal – Yearly | $29.99 | per year |
| PeptidePal – Yearly | $35.99 | per year |
| PeptidePal – Yearly | $35.99 | per year |
| PeptidePal – Yearly | $39.99 | per year |
| PeptidePal – Yearly | $39.99 | per year |
| PeptidePal – Yearly | $44.99 | per year |
| PeptidePal – Yearly | $59.99 | per year |
| PeptidePal – Yearly | $79.99 | per year |


## Frequently asked questions

### Is PepStack free?

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

### Is PeptidePal free?

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

### Do PepStack or PeptidePal have ads?

PeptidePal shows ads; PepStack does not.

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

PepStack ships an update every 2 days, and PeptidePal every 5 days. Most recently, PepStack was updated on October 7, 2026 and PeptidePal on October 11, 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.*