App didn't serve any purpose. No option to chose meal preference... neither at the time of check-in as it was promised. Also on the web interface it wasn't possible to chose meal preference, neither at the time of booking nor later in the manage booking. For such a small thing I had to call and hold for more than an hour. After check-in the app still showed that we haven't checked in. The app didn't show the gate number. Neither updated boarding and departure time when flight was delayed.