# ZKN vs DentPrep

The clearest difference is in-app purchases: ZKN at none against DentPrep's 2. ZKN also leads on iOS requirement (15.0 vs 17.0). DentPrep's advantage is device support. On price there is nothing between them.

Both are free to download. DentPrep sells 2 in-app purchases, starting at $12.99 per month. ZKN asks for nothing beyond the download.

## The numbers

| Metric | ZKN | DentPrep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | — | Every 10 days |
| Size | 3 MB | 73 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [Simity GmbH](https://appshunter.io/developer/1527290080) | [Manali Vipul Somani](https://appshunter.io/developer/6803695956) |

## What reviewers say

### ZKN

[App page](https://appshunter.io/ios/app/zkn-azubi/id1639606909)

**In-app purchases:** none


### DentPrep

[App page](https://appshunter.io/ios/app/dentprep/id6803695954)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DentPrep Premium Monthly | $12.99 | per month |
| DentPrep Premium Annual | $129.99 | per year |


## Frequently asked questions

### Is ZKN free?

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

### Is DentPrep free?

DentPrep is free to download, with in-app purchases available.

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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.*