# PepStack vs Petal

The clearest difference is ads: PepStack at none against Petal's shown. PepStack also leads on update cadence (every 2 days vs every 2 months) and iOS requirement (15.5 vs 18.0). 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 Petal sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PepStack ships an update every 2 days, Petal every 2 months. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PepStack | Petal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 2 months |
| Size | 85 MB | 19 MB |
| Requires iOS | **15.5** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Max Berktold](https://appshunter.io/developer/1596273015) | [Kris Diallo](https://appshunter.io/developer/1801865917) |

## 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 |


### Petal

[App page](https://appshunter.io/ios/app/petal-your-peptide-companion/id6760715320)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $4.99 | per 7 days |
| Premium Access (Yearly) | $119.99 | per year |


## Frequently asked questions

### Is PepStack free?

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

### Is Petal free?

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

### Do PepStack or Petal have ads?

Petal shows ads; PepStack does not.

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

PepStack ships an update every 2 days, and Petal every 2 months. Most recently, PepStack was updated on October 31, 2026 and Petal on November 5, 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.*