# Polypep vs Onefast

The clearest difference is ads: Onefast 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 Onefast sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Polypep ships an update every 3 days, Onefast every 2 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Polypep | Onefast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Size | 71 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Dal Rupnik](https://appshunter.io/developer/631308099) | [Nguyen Dinh Chung](https://appshunter.io/developer/6805296065) |

## 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 |


### Onefast

[App page](https://appshunter.io/ios/app/onefast-fasting-timer/id6810987516)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Onefast Pro (Yearly) | $9.99 | per year |
| Onefast Pro (Lifetime) | $19.99 | one-time |


## Frequently asked questions

### Is Polypep free?

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

### Is Onefast free?

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

### Do Polypep or Onefast have ads?

Polypep shows ads; Onefast does not.

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

Polypep ships an update every 3 days, and Onefast every 2 days. Most recently, Polypep was updated on October 28, 2026 and Onefast on October 29, 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.*