It's free to get the installer of Die Etagen, also, you can take a look at users' reviews on Droid Informer. It's secure to download the app. This application was originally developed by Die Etagen GmbH and it is listed among the Libraries & Demo category.
The most recent update of the tool was released on Sep 4, 2018 and Die Etagen was downloaded by over 100 users. On Google Play, the app was rated 4.2 by its users.