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 (regional railways)

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

The line network is also known as underground transit map tube map suburban rail network line network plan rail line route network plan routemap network map railway network underground network transport network map rail network map topological map subway metro line net map underground railway subway tube underground railroad railway train track underpass elevated railway urban transportation service chute light rail rail rapid transit public transit service or urban rail network.

Notices:
• Usable with phone and tablet with Android 4.1 (Jelly Bean API 16) bis Android 10.0 (Q API 29).
• The content of the apps is not guaranteed to be correct or complete.
• The embedded maps in this app be subject to the Copyright of the cartography Berliner Verkehrsbetriebe (BVG) and the Verkehrsverbund Berlin-Brandenburg (VBB).