A free app for Android, by Subway Maps by LithoByte Co..
This application is the best way to get around the New York City subway system.
The app contains all of the subway maps for the five boroughs of New York City (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island) as well as the Long Island Railroad (LIRR) network map. The maps are all in one app so you don’t have to download them and save them on your phone. The app is very simple and easy to use.
The app is useful for both tourists and residents. You can zoom in and out of the maps to see if there is a train in front of you or if you need to wait for the next train. You can also use the app as a subway map. You can get the latest information for all of the subway stations in New York City, including the location of the station, the direction of the station, the distance of the station from your current location, and the time of the next train to the station.