Best transit mapping App
This is by far the best free App for transit. I am in NYC - and this App has all the maps to download so that they are always at your touch. Also - available other cities for a price....was worth the upgrade. But if you are needing only one city...the free app is awesome. NYC alone has 16 available maps, separating busses by borough.
Jeff-NYC about
New York City Maps - NYC Subway and Travel Guides, v4.7.1