At the image of Air Europa: not friendly

The app looks modern, but works pretty badly.

Why do we need a specific password: Flying Blue number is not good enough for Air Europa??

Why do we need to register just to use the app for check-in??

By the way, it was impossible for me to check-in (and even get my reservation)...despite it is a UX ticket (and I can perfectly see my flight...on the Air France app with my Flying Blue number).

Oh, yes, its Air Europa.

Nicolas from Paris about AirEuropa, v2.4