Just some simple maps which you can use offline for scrolling around zooming in and out. The App has a few tabs with different types of transit maps.
The following line networks are offline available (without any additional download)
• schematic subway transit map
• subway night service map
• detailed NYC map
The used schematic versions of NYC subway maps are not officially by Metropolitan Transportation Authority (MTA).
• Usable with phone and tablet with Android 4.0.3 (IceCreamSandwich API 15) to 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 (CC BY-SA 3.0) and were created by English Wikipedia-User CountZ (copyright holder) and Jake Berman (maps.complutense.org).