Great concept - poor development

The idea behind the app is great - and even the user interface is decent (although could certainly be improved). What kills the app, however, is its complete lack of stability. It crashes all the time, cant connect to the server, or times out. When that happens, not even a restart of the app helps, the phone needs to be completely rebooted! My train ride is 20 minutes - and thats about how long it takes to buy a ticket... Useless!

Me854 about SBB Mobile, v4.1