A free app for Android, by devMX.

The app “Wetterradar – Rain radar live” gives you a quick overview of current weather conditions and forecasts for Germany. With the help of the app, you can easily find out when it is going to rain, hail, or even snow in your area. The app displays different radar maps for you to easily determine the location of the precipitation. The radar maps are updated every five minutes with a delay of approximately three minutes. You can also find out the current precipitation amount by using the slider.