This app is exponentially more helpful than any other transit app I've tried to use for the commuter rail, just the comment feature alone is enough since it lets riders share information but the history and data visuals are super useful as well. Best in the business.
Does what it says it does. Excellent map positioning and information density. Simple easy to use interface. Concise and accurate helpful information. Well worth the price of admission.
The comments/reports feature is what makes this TRULY an essential for me as a commuter. There's always super helpful people posting track numbers, train info (how many doubles/singles), etc. And on days when the trains are falling over left and right, at least the comment section usually provides some entertainment while I'm delayed.
MBTA Rail