# BKS BioKey vs BRUNNER EAS3

The clearest difference is update cadence: BRUNNER EAS3 at every 5 months against BKS BioKey's every 39 months. BKS BioKey's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

BKS BioKey ships an update every 39 months, BRUNNER EAS3 every 5 months. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | BKS BioKey | BRUNNER EAS3 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 5 months** |
| Size | 5 MB | 110 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Idencom Germany GmbH](https://appshunter.io/developer/1585322113) | [Ulrich Brunner GmbH](https://appshunter.io/developer/1150435660) |

## What reviewers say

### BKS BioKey

[App page](https://appshunter.io/ios/app/bks-biokey/id1473805771)

**Features:** macOS Compatibility

**In-app purchases:** none


### BRUNNER EAS3

[App page](https://appshunter.io/ios/app/brunner-eas3/id1588084582)

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

**In-app purchases:** none


## Frequently asked questions

### Is BKS BioKey free?

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

### Is BRUNNER EAS3 free?

BRUNNER EAS3 is free to download, with no in-app purchases.

### Do BKS BioKey or BRUNNER EAS3 have ads?

Neither BKS BioKey nor BRUNNER EAS3 shows ads.

### Which is updated more often, BKS BioKey or BRUNNER EAS3?

BKS BioKey ships an update every 39 months, and BRUNNER EAS3 every 5 months. Most recently, BKS BioKey was updated on October 3, 2026 and BRUNNER EAS3 on October 11, 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.*