# BDK vs 4SchoolKidz

The clearest difference is device support: BDK at 3 against 4SchoolKidz's —. 4SchoolKidz's advantage is iOS requirement (10.0 vs 15.6). 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 | BDK | 4SchoolKidz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 6 months | — |
| Size | 36 MB | 20 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 17+ |
| Developer | [Bund Deutscher Kriminalbeamter](https://appshunter.io/developer/1737796676) | [Link IT isi GmbH](https://appshunter.io/developer/1527560604) |

## What reviewers say

### BDK

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 4SchoolKidz

[App page](https://appshunter.io/ios/app/4schoolkidz/id6502086424)

**In-app purchases:** none


## Frequently asked questions

### Is BDK free?

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

### Is 4SchoolKidz free?

4SchoolKidz 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.*