Greenline displays the real-time arrival predictions and locations for all MBTA Green Line trains.

Greenline has a sleek and intuitive design. When you first open the app, it will find the nearest station, tell you how many minutes until the next train arrives, and show you where the train is currently located.

While you're waiting for your train, you can play with the interactive map and watch as Green Line trains move across Boston.

Meeting a friend? Let your friends know where you are by sharing you're train so they can track you in the app.

Greenline is powered by real-time vehicle prediction and location data provided by the MBTA.

What's New

Version 2.0

Time-based arrival predictions for the Green Line are finally here! No more guessing with distance, now you'll know exactly how many minutes until the next train arrives.

Ratings and Reviews

3.5 out of 5
42 Ratings
42 Ratings

Great for the green line!

Great app for tracking the green line. Give this person a medal. All the other apps seemed to just forget about it, and this app came through with real time tracking! It uses the same info the MBTA uses, so sometimes the countdown isn't pinpoint accurate, but that's only because the trains themselves aren't running smoothly.


Works Pretty Well and Very Useful

Obviously it's limited by the data that the MBTA supplies. Sometimes a trolley will not be sending GPS data, so it doesn't appear. Other times there will be mysterious delays in getting new data. And sometimes I get a mysterious error message and nothing shows up at all. My ding is that the tech support email doesn't always work -- mailbox full, I think.


Finally!!! Give this developer a medal!!!

Great so far!!! Just found the app yesterday and it has worked great. Slight lag time for the C-line, as far as when trains leave Cleveland circle. However, it seems to catch up a few stops inbound. Thanks again...keep up the great work!


Vladimir Grinman
16 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Alex Grinman


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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