# Clex Key vs Einfach verstehen

The clearest difference is in-app purchases: Clex Key at none against Einfach verstehen's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Einfach verstehen sells 1 in-app purchase, starting at $1.99 per 7 days. Clex Key asks for nothing beyond the download.

## The numbers

| Metric | Clex Key | Einfach verstehen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 18 MB | 3 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Uhlmann & Zacher GmbH](https://appshunter.io/developer/1413776543) | [Relativity GmbH](https://appshunter.io/developer/1472588913) |

## What reviewers say

### Clex Key

[App page](https://appshunter.io/ios/app/clex-key/id1500405117)

This app allows you to open and close electronic locking units using your smartphone via Bluetooth Low Energy. It ensures high security through a two-part invitation confirmation process. The updated version offers more efficient communication, stable performance, and an improved user interface.

**Highlights:** Unlock doors via Bluetooth, Receive mobile keys, Efficient communication with locking units, Improved user guidance, High security standards, Execute block requests

**Features:** macOS Compatibility

**In-app purchases:** none


### Einfach verstehen

[App page](https://appshunter.io/ios/app/einfach-verstehen/id6755065516)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per 7 days |


## Frequently asked questions

### Is Clex Key free?

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

### Is Einfach verstehen free?

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

### Do Clex Key or Einfach verstehen have ads?

Neither Clex Key nor Einfach verstehen shows ads.

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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.*