The download of the app is 100% secure. EXAKT designed Symbolkommunikation that falls into the Educational category. People rated the tool 3.5 on Google Play.
This application was downloaded and installed by over 1K users and the most recent stable update was on Dec 3, 2018. It's free of charge to download the installation package of Symbolkommunikation, also, you can read users' reviews on Droid Informer. The app works fine on Android 4.1 and above.