It's secure to download the app. Appdialog is the developer of Josef Briechle which can be found in the Lifestyle category. The latest release was on Jan 17, 2017 and the tool was downloaded and set up by over 10 users.
This application has been rated 4.3 on Google Play. It's free to download the installer of Josef Briechle, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 4.1 and above.