# Hahn IDent vs GU BioKey

The clearest difference is device support: GU BioKey at 4 against Hahn IDent's —. Hahn IDent's advantage is iOS requirement (11.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Hahn IDent | GU BioKey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Fortnightly |
| Size | 9 MB | 81 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | — | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Team Stiefelhagen Werbeagentur GmbH](https://appshunter.io/developer/1031243988) | [Idencom Germany GmbH](https://appshunter.io/developer/1585322113) |

## What reviewers say

### Hahn IDent

[App page](https://appshunter.io/ios/app/hahn-ident/id6445979519)

**In-app purchases:** none


### GU BioKey

[App page](https://appshunter.io/ios/app/gu-biokey/id6752300410)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Hahn IDent free?

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

### Is GU BioKey free?

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

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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.*