Moovit

The Moovit app is an app that shows you when busses are coming and their schedules.

Details

When you open the app you are put on the directions tab, here you will find a search field where you can search for a place and get directions to go there.

The next tab is the stops tab, here you can see nearby stations, the upcoming arrival times.

The last tab is the lines tab, here you will find information for a specific line, once you tap here, a list of lines will show up and tapping on one of them will give the full schedule for that line.

I think Moovit is a great app and if you have busses in your area you should give it a try.