Originally Posted by octr202

From a viewpoint of a non-NYCer who visits regularly, I often find the MTA's own Weekender app is useful for more than just weekend service diversions. The schematic map in the main home screen does indicate which stations are accessible, but when you tap on a station, you can also pull up neighborhood maps which shows the local streets and where the different entrances are to each station. The locations of elevators are marked, although not always the easiest to read on a phone (I wish you could zoom in closer sometimes).

http://web.mta.info/apps/weekenderApp.html