# ONE vs Peptide Tracker

The clearest difference is iOS requirement: ONE at 15.0 against Peptide Tracker's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ONE sells 1 in-app purchase, starting at $19.00 per month and Peptide Tracker sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | ONE | Peptide Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Size | 11 MB | 13 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [Joe Andrews](https://appshunter.io/developer/6812858096) | [Indra Poudel](https://appshunter.io/developer/1768246423) |

## What reviewers say

### ONE

[App page](https://appshunter.io/ios/app/one1/id6812858094)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ONE:1 App Membership | $19.00 | per month |


### Peptide Tracker

[App page](https://appshunter.io/ios/app/peptide-tracker-vialclock/id6815673420)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VialClock Monthly | $9.99 | per month |
| VialClock Annual | $49.99 | per year |
| VialClock Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is ONE free?

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

### Is Peptide Tracker free?

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

### Do ONE or Peptide Tracker have ads?

Neither ONE nor Peptide Tracker shows ads.

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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.*