The download of the app doesn't contain viruses or any kind of malware. Verkehrsverbund Rhein-Ruhr AöR is the creator of NEW MöBus App which can be found in the Maps & Navigation category. The most recent update was on Oct 23, 2020 and the tool was downloaded and set up by over 10K users.
Google Play shows that this application is rated 3.4 by its users. It's free to download the installer of NEW MöBus App, also, you can take a look at users' reviews on Droid Informer. The app works fine on Android 5.0 and higher.