Air France - Book a flight

Horrible experience, as most apps do when need to sign in it asks for my email and password. So I type in my email and password and it tells me I need to check my email for a confirmation code. When I type the code into the boxes it says it's wrong even when I double check to make sure it's the right on multiple times. So I try a different email and it does the same thing no matter what even if I send a new code or put my phone number in or use my flight number. Extremely frustrating I even tried to sign in on multiple different devices. Worst app i've ever tried signing in on. Absolutely terrible.

Their backend systems are notiously horrible, personally makes me use other airlines instead solely to avoid the 50/50 of whether their systems are working or not

I booked two tickets on a flight, but the app only lets me check in for my own, there is no option to do so for my wife’s even though the notification still only shows 1/2 checked in. Annoying, but at least I could do it online (but not on the mobile website which crashes every time I try to log in…). However now I cannot access my wife’s boarding pass on the app, and cannot add it to Apple wallet. Extremely frustrating to be dealing with in the lead up to a flight.