IDOS is described as 'timetables websites is one of the outputs of the National information system of timetables (CIS JR), operated under auhority of Ministry of Transport of the Czech Republic by the company CHAPS Ltd'. There are four alternatives to IDOS for a variety of platforms, including Android, iPhone, Online / Web-based, Symbian S60 and Windows Mobile. The best alternative is Transportr, which is both free and Open Source. Other great apps like IDOS are Transit (Free), Wikiroutes (Free) and Metro (Free).
Transportr is the public transport companion that respects your privacy and your freedom. Transportr is a non-profit app developed by people around the world to make using public transport as easy as possible wherever you are.
Never miss your bus again. Open up the app and boom: upcoming departure times for all nearby transit lines are right there, displayed in big text and bright colors. Plan your trip, set reminders, and get notified about disruptions. Or maybe public transport isn't cooperating?
Wikiroutes - public transportation database edited by the community. You can find information about certain routes, optimal routes between A and B in more than 1650 cities worldwide. Also have mobile clients.