DB Railnavigator

With DB Railnavigator the Deutsche Bahn AG offers you the most comprehensive information service about public transport. The DB Railnavigator has access to all schedules of public transport operators in Germany and calculates the optimal trips for you by train, bus, tram, subway and ship. 
Wherever you are, now you can get all the most up-to-date travel information directly on your phone. It doesn t matter whether you re on board of a train or if you re picking somebody up at the station - with the DB Railnavigator you always know if your train is on schedule.
This application starts in German but the language can be switched to English in the options menu,  Settings, Language.