Yesterday the app logged me out every time I opened it while connected to ICE wifi. The only way to log back in was to disconnect from it, or the login page would show an "access denied" NS-server error. Very stressful when the conductor is checking tickets. Today the app refuses to turn on notifications for a trip. I've previously arrived at Dutch central stations only to learn that my train was canceled, with zero indication in the app (and no notifications). UX is bad too, asking for earlier or later connections on the search screen throws you into the „morning" or other tab without actually showing what you wanted — why not keep it simple and get rid of those awful tabs? Also, no way to check the current train you're on if you've had to take a detour, because it doesn't show "past" trains, only ones that can still be booked (apparently you prioritize selling tickets over informing existing passengers). Please fix your app.