From Capital Technology Services LLC:
My Train NJ allows you to view NJ Transit Rail's real-time train departure and track information, similar to the electronic bulletin board you see in a train station. As of this writing, no other app gives you real-time NJ Transit train track information. Also consider buying our "New York Radio Live" app to listen to your favorite New York area radio stations during your train commute.You can find out which track the train will be departing from and if it is running late, how late it is. This is particularly useful in large train stations or when you are running late to catch your train. You can check the track and time information in advance, as soon as it is released by NJ Transit. Find out which track your train will be departing from, in real-time Select the nearest station using GPS service, and display the train departure and track information Locate an NJ Transit train station on a map, which can help you get driving directions or find nearby places of interest.