The following line networks are offline available (without any additional download):
• Underground, urban and regional rail network (Tariff area Berlin ABC)
• Tram network (metrotram and tram)
• 24-hour-network (metrobus, metrotram, subway and night bus)
• Regional rail network Berlin/Brandenburg

https://www.facebook.com/203994253076876
http://dieeinsteiger.blogspot.de

The line network is also known as transit map, tube map, suburban rail network, line network plan, route network plan, routemap, network map, railway network, underground network, transport network map, rail network map, topological map, subway, metro or urban rail network.

Notices:
• We don't use any software to collect user data or statistics.
• Usable with phone and tablet with Android 2.3 (Gingerbread, API 9) to Android 8 (Oreo, API 26).
• The embedded maps in this app be subject to the Copyright of the cartography Berliner Verkehrsbetriebe (BVG) and the Verkehrsverbund Berlin-Brandenburg (VBB).