Comparison

Greenline vs Terrier Transit

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Greenline

Get real-time arrival predictions and live train locations for the MBTA Green Line. Features an interactive map to track trains moving across Boston and allows you to share your train's location with friends.

Highlights
  • Real-time arrival predictions
  • Live train locations
  • Interactive map
  • Nearest station detection
  • Train location sharing
Features
Read full description

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.

About

Terrier Transit

Navigate Boston University's campus and city transit with real-time arrival times, service alerts, and step-by-step directions. Plan your journeys efficiently using buses, trains, and bikes, with options for offline maps and international travel.

Highlights
  • Real-time arrival updates
  • Service disruption alerts
  • Step-by-step transit directions
  • User-reported issue notifications
  • Favorite lines and stations
  • Integrated bike route planning
  • Offline map viewing
Features
Read full description

Terrier Transit is your key to getting to, from, and around Boston University. Transportation is an integral part of life at Boston University. Whether you ride the BU Shuttle (BUS), the T, MBTA buses, or a Bluebike, to reach classes, labs, dorms, or dining halls, getting the best urban mobility information is critical – from trips to between campuses or just up and down Commonwealth Avenue. Enter BU’s Terrier Transit app, powered by Moovit! Terrier Transit guides you from point A to B in the easiest and most efficient way. Get T and bus times, maps, and real-time arrival times with ease so you can plan your trip with confidence. Find critical alerts and service disruptions for your favorite lines, including the BUS. Get step-by-step directions of optimal route bus, train, metro, bike, scooter or a combination of them. Terrier Transit is your personal assistant for trips on-campus and off! ► Real time arrivals. View real-time arrival updates, which are taken directly from GPS devices positioned on BU buses and MBTA buses and trains. Avoid wasting time guessing train times or bus times. ► Real time alerts. Know about issues ahead of time by receiving MBTA and BU service alerts such as emergency or unexpected disruptions, delays, traffic jams, new construction, and more so that you can plan ahead if your bus time or train time changed. ► Live Directions. Get step-by-step bus directions and other transit directions with live guidance from A-to-B: Know how long you need to walk to your station, view the arrival time of your line, receive get-off alerts at your destination, and more. ► Users reports. Terrier Transit’s users report issues found with stations, line service, and schedules so that we can inform all nearby riders about what’s going on in their area. ► Favorite lines, stations, and places. Always going between Central Campus and BUMC? Get easy access to lines, stations, and places you ride and visit all the time. Plus, get real-time updates if/when there are changes to your favorite lines in case your bus time or train time is impacted! ► Bike routes. Get bike routes in addition to the bus, subway, train, or metro trip plans. If you ride bikes (yours or shared) we can plan a route that includes the train or bus. Terrier Transit will help you plan a trip that meets your transit-needs. Bluebikes station data is updated in real-time. ► Maps view. Interested in seeing the whole picture? View all stations, routes, and lines on the subway or bus map. Additionally, maps are available in PDF for when you’re offline, or underground on the subway. ► International functionality. Terrier Transit isn’t just for getting around campus. It will also work for study abroad and trips home. The app can be used to navigate nearby buses and transit nationwide and across 98 other countries. If you’d like to know bus times and train times in London, Barcelona, Madrid, or Rome, or, if you need to find out when the last bus leaves a certain bus stop in Rio de Janeiro, São Paulo, Melbourne, Seoul, Terrier Transit has you covered. You ride, we guide! *** Have an idea or a question? Feel free to contact us: http://bu.edu/thebus

Screenshots

Greenline4 screens
Terrier Transit4 screens

Verdict

The call

The clearest difference is rating: Greenline at 3.3 against Terrier Transit's 2.8. Greenline also leads on review sentiment (53% vs 17%) and iOS requirement (11.0 vs 15.0). Terrier Transit's advantage is ratings volume (180 vs 59). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Greenline holds the better App Store score, 3.3 against 2.8. Both are backed by a comparable volume of ratings — 59 and 180 respectively. Written reviews point the same way: 53% of Greenline's written reviews are positive against 17% of Terrier Transit's.

UpkeepUpdate frequency

Greenline ships an update every 7 months, Terrier Transit every 6 months. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
Greenline versus Terrier Transit: the parameters behind the verdict, then further details
ParameterGreenlineTerrier Transit
PriceFreeFree
Rating3.3 (59 ratings) — better2.8 (180 ratings)
Positive reviews53.1% of reviews — better16.7% of reviews
Number of ratings59180 — better
Update frequencyEvery 7 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size9 MB176 MB
Age rating4+4+
DeveloperVladimir GrinmanBoston University

Customer experience

Greenline

All ratings59 ratings
Positive52.5%
Neutral13.6%
Negative33.9%
Written reviews64 reviews
Positive53.1%
Neutral10.9%
Negative35.9%

Terrier Transit

All ratings148 ratings
Positive36.5%
Neutral3.4%
Negative60.1%
Written reviews42 reviews
Positive16.7%
Neutral2.4%
Negative81.0%

User reviews

Greenline

From 59 App Store ratings

What we love

  • 👍 Great for tracking Green Line
  • 🚀 Fast and efficient information
  • ✨ Simple and clean interface
  • 🗺️ Visual live map tracking
  • ✅ Accurate timing (when working)

Room to improve

  • 🐛 Frequently stops working
  • 🐛 App crashes often
  • 🐛 Loading screen issues
  • 🐛 Inaccurate timings
  • 🐛 Missing stops/stations

Terrier Transit

From 180 App Store ratings

What we love

  • 👍 Sometimes works
  • 👍 Useful for tracking school bus
  • 👍 Appreciates integration of other transit (rare)
  • 👍 Real-time shuttle information (when working)

Room to improve

  • 😞 Buses are never on time
  • 😞 Live tracking is inaccurate or not working
  • 😞 App is non-functional or useless
  • 😞 Buses are cancelled frequently
  • 😞 UI is confusing and difficult to navigate

Bugs and requests

Greenline

Reported bugs

48 issues
  • App keeps crashing
  • Timings are not accurate
  • App shows incorrect arrival times
  • App shows trains coming in 12 minutes, then suddenly missed three within 4 minutes
  • App says 1 minute till arrival, but user waits 3 minutes
Show 43 more
  • Government Center stop missing
  • App won't load
  • App just spins and gives an error message
  • App just spins endlessly
  • App refreshes over and over
  • App is dead/stopped working
  • App shows error message
  • App stuck on loading screen
  • App doesn't show arrival times or location
  • App spins around and no info for months
  • App not updated for iOS 11.1
  • App doesn't work on new iOS
  • Watch app barely works
  • Watch app won't load anything
  • App hasn't worked since September
  • App opens but never advances past a blurry loading screen
  • App won't load map
  • App spins and doesn't load map
  • App crashes before loading main screen
  • App never gets past loading screen
  • App broken after latest update
  • App doesn't load up fully
  • App crashes every time with iOS 8.13 since updated
  • App crashes with iOS 8
  • App crashes after update
  • App crashes post iOS 9 release
  • App crashes all the time since iOS 9 update
  • App crashes when switching between inbound and outbound
  • App says no MBTA info available most of the time
  • App crashes whenever you select an option
  • App crashes after update
  • App has severe lag
  • App claims train is .5 miles away when it has pulled up
  • App doesn't support underground stations (prior to update)
  • App crashes every time it's opened (new version)
  • App doesn't work on iOS 8.4
  • App has frosted glass load screen that never leaves
  • App is not iOS 9 compatible
  • App takes fiddling
  • App doesn't always show GPS data for trains
  • Mysterious delays in new data
  • Mysterious error message and nothing shows up
  • Tech support email doesn't always work (mailbox full)

Requested features

8 requests
  • Update for new Green Line extensions
  • Support for new B line stops (Amory St, revised Babcock)
  • Remove non-existent stops (BU West, Pleasant St, St. Paul Street)
  • Add Apple Watch support
  • Display next 2-3 trains in a direction
Show 3 more
  • Allow users to add favorite stations/stops
  • Add favorite branches of the Green Line
  • Add Apple Watch app support

Terrier Transit

Reported bugs

9 issues
  • Live feature never working
  • Tracking is wrong or doesn't work
  • Does not show real time
  • Live location not always updating
  • Stops don't show up in favorites
Show 4 more
  • App glitches and can't see bus arrival
  • Update alert pop-up won't go away
  • App is non-functional
  • Live bus tracker missing

Requested features

7 requests
  • Make app like Apple Maps or Google Maps
  • Improve UI and navigation
  • Fix live location updating
  • Fix update alert pop-up
  • Simplify features
Show 2 more
  • Bring back old app's live tracker
  • Focus on BU shuttle tracking

In-app purchases

None

Greenline

No in-app purchases

None

Terrier Transit

No in-app purchases

Questions

Is Greenline free?
Greenline is free to download, with no in-app purchases.
Is Terrier Transit free?
Terrier Transit is free to download, with no in-app purchases.
Which has better reviews, Greenline or Terrier Transit?
Greenline is rated higher. Greenline averages 3.3 out of 5 from 59 ratings, while Terrier Transit averages 2.8 from 180 ratings.
Do Greenline or Terrier Transit have ads?
Neither Greenline nor Terrier Transit shows ads.
Which is updated more often, Greenline or Terrier Transit?
Greenline ships an update every 7 months, and Terrier Transit every 6 months. Most recently, Greenline was updated on October 24, 2026 and Terrier Transit on October 22, 2026.

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