This app was mentioned in 1 comment, with an average of 15.00 upvotes
We have a cute little app that does this. http://busdetective.com/ You can also find it on the App Store and Google Play stores.
The people I work with use the bus system to commute, so we made an app for it. We pretty much use it every day and have it live updating on a TV in the office so we know when to walk out to catch our bus.
If you do use it, please give us feedback on Github or on our Trello Board!