# Stack vs Pepsta

The clearest difference is update cadence: Stack at every 8 days against Pepsta's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stack sells 2 in-app purchases, starting at $9.99 per 7 days and Pepsta sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Stack ships an update every 8 days, Pepsta every 2 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Stack | Pepsta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Size | 136 MB | 11 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [Amari Thomas](https://appshunter.io/developer/1868315587) | [Salah Eddine Ziari](https://appshunter.io/developer/1895075807) |

## What reviewers say

### Stack

[App page](https://appshunter.io/ios/app/stack-peptide-tracker/id6773488687)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Weekly | $9.99 | per 7 days |
| Stack Yearly | $49.99 | per year |


### Pepsta

[App page](https://appshunter.io/ios/app/pepsta-peptide-tracker/id6789895121)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $2.99 | per 7 days |
| Monthly | $7.99 | per month |
| Yearly | $39.99 | per year |


## Frequently asked questions

### Is Stack free?

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

### Is Pepsta free?

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

### Do Stack or Pepsta have ads?

Neither Stack nor Pepsta shows ads.

### Which is updated more often, Stack or Pepsta?

Stack ships an update every 8 days, and Pepsta every 2 months. Most recently, Stack was updated on October 1, 2026 and Pepsta on October 3, 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.*