A free program for Android, by Nicolò Mazzucato.
With the app, you can check the timetables for buses and boats, in addition to the navigational information. You will also find out which stops are the most frequently used, so you can easily decide which route to take.
If you want to check the timetables for boats and buses in Venice and its surrounding areas, you can find out when the next bus will arrive at any stop in Venice and in which direction it will go. This application will also provide you with all the information you need about the routes that go through Venice.
This application is the best way to get all the information you need about the buses and boats in Venice and its surrounding areas.