The download of the tool is 100% secure. This application was originally developed by Plakos GmbH and it is listed among the Educational category. The developer released a new version of Prozentrechnen online lernen on Feb 9, 2016 and over 5K users downloaded and set up the app.
The tool has the overall rating 2.8 on Google Play. Adverts are a part of this application. You are able to get the setup package of Prozentrechnen online lernen 1.8 for free and take a look at users' reviews on Droid Informer. The app works fine on Android 2.1 and higher.