Bolin was an aggregation site for searching for rented apartments in Linköping, Sweden. I created Bolin because I was dissatisfied with the main landlords' web pages. By reverse engineering their Android application's protocol I managed to have a prototype working within the first 12 hours. I continued to update the project when it broke due to API changes.
The project is now dead due to that the landlords' web pages are better, and that the API I used is no longer available.