A free program for Android, by Andrzej Nosek.
MBTA Tracker is the official, fully integrated app for the Massachusetts Bay Transportation Authority (MBTA) and its eight commuter rail and bus agencies. With MBTA Tracker, you can view all of the agency's services and routes, including the times and schedules for each. You can also get alerts for service disruptions and track your bus or train in real-time.
How to use MBTA Tracker
If you're already a registered, current user of the MBTA website, log in with your username and password.
If you're a first-time user, click on "Get Started", and follow the instructions.
Once you're logged in, click on "Services", and you'll be able to view all of the MBTA services, including subway (green, orange, blue, red, and mattapan lines), commuter rails, boats, and buses.
