The download of the app doesn't contain viruses or any kind of malware. Marc Heubes is the official developer of ruhrwetter.de which can be found in the Weather category. The average user rating of the tool is 4.3.
This application was downloaded and installed by over 0,5K users and the most recent stable update was on Aug 6, 2016. Download the latest setup package of ruhrwetter.de 1.0.2 free of charge and have a look at users' reviews on Droid Informer. The app is compatible with Android 4.0.3 and above.