Arrivals NYC: Subway Times

Arrivals NYC provides real-time train times for the New York City subway stations nearest you. No load screen, no menus -- just a simple list when you open the app. It finds your nearest stops and lists their next trains using the same real-time data shown on subway platforms. You can touch a station name for walking directions.
The Today widget lets you see train times even faster. Add it to your Today view and swipe down from any screen, even your lock screen.
The MTA currently provides real-time train times for the 1, 2, 3, 4, 5, 6, L, and S lines. It also provides beta train times for the B, C, D, N, Q, R, and W lines.