Location-based services with Android was the title of my thesis. I developed an app for Android that allows the user to retrieve information about the surounding area, from Taxi spots to CityBike stations and more. The app uses the geoinformation webservice of the city of Vienna. Unfortunately this was in 2013 and the webservice calls have changed over the years, so the app does not receive useful data anymore (and frankly I didn’t want to invest time in maintaining this project). But the app works under Android > 5 and still has a quite nice UI.