# CDU Hessen vs BDK

The clearest difference is update cadence: CDU Hessen at every 3 weeks against BDK's every 6 months. BDK's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

CDU Hessen ships an update every 3 weeks, BDK every 6 months. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | CDU Hessen | BDK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Size | 29 MB | 36 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CDU Hessen](https://appshunter.io/developer/642371889) | [Bund Deutscher Kriminalbeamter](https://appshunter.io/developer/1737796676) |

## What reviewers say

### CDU Hessen

[App page](https://appshunter.io/ios/app/cdu-hessen/id6446126249)

**In-app purchases:** none


### BDK

[App page](https://appshunter.io/ios/app/bdk/id6479994884)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CDU Hessen free?

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

### Is BDK free?

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

### Do CDU Hessen or BDK have ads?

Neither CDU Hessen nor BDK shows ads.

### Which is updated more often, CDU Hessen or BDK?

CDU Hessen ships an update every 3 weeks, and BDK every 6 months. Most recently, CDU Hessen was updated on September 17, 2026 and BDK on September 9, 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.*