# Polypep vs Stax

The clearest difference is ads: Stax at none against Polypep's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Polypep sells 4 in-app purchases, starting at $6.99 per month and Stax sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Polypep ships an update every 3 days, Stax every 2 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Polypep | Stax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/stax-peptide-tracker/id6818569355/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 71 MB | 64 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Dal Rupnik](https://appshunter.io/developer/631308099) | [FARSHID ORAK](https://appshunter.io/developer/6818569357) |

## What reviewers say

### Polypep

[App page](https://appshunter.io/ios/app/polypep-peptide-tracker/id6768591859)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $6.99 | per month |
| Ultimate Monthly | $14.99 | per month |
| Pro Yearly | $49.99 | per year |
| Ultimate Yearly | $99.99 | per year |


### Stax

[App page](https://appshunter.io/ios/app/stax-peptide-tracker/id6818569355)

Easily log peptide shots, track your custom plan, and monitor your consistency. This private tool stores all data locally on your device, offering reminders and progress charts without requiring an account or internet connection.

**Highlights:** Log shots in seconds, Customizable daily/weekly plans, Private, local data storage, Undercover reminders, Daily, weekly, monthly progress charts, Edit/delete logged entries

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stax Plus Monthly | $6.99 | per month |
| Stax Plus Annual | $59.99 | per year |
| 14-day Trial | Free | one-time |
| Stax Plus Lifetime | $149.99 | one-time |


## Frequently asked questions

### Is Polypep free?

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

### Is Stax free?

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

### Do Polypep or Stax have ads?

Polypep shows ads; Stax does not.

### Which is updated more often, Polypep or Stax?

Polypep ships an update every 3 days, and Stax every 2 days. Most recently, Polypep was updated on October 28, 2026 and Stax on October 31, 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.*