# PeptideIQ vs YDUN

The clearest difference is price: YDUN at Free against PeptideIQ's $3.99. YDUN also leads on iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

YDUN is free to download; PeptideIQ costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PeptideIQ | YDUN |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 2 MB | 20 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nicholas Georgalos](https://appshunter.io/developer/1830873367) | [Ydun SRL](https://appshunter.io/developer/6780828839) |

## What reviewers say

### PeptideIQ

[App page](https://appshunter.io/ios/app/peptideiq/id6751433667)

**In-app purchases:** none


### YDUN

[App page](https://appshunter.io/ios/app/ydun/id6780828837)

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

**In-app purchases:** none


## Frequently asked questions

### Is PeptideIQ free?

PeptideIQ costs $3.99, with no in-app purchases.

### Is YDUN free?

YDUN is free to download, with no in-app purchases.

### Do PeptideIQ or YDUN have ads?

Neither PeptideIQ nor YDUN 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.*