The following line networks are offline available (without any additional download):
• city network

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

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 Creative-Commons license (CC BY-SA 3.0) and were created by Wikipedia-User Sebastian Sothen (copyright holder).