Lacking an Important Element

I downloaded the app for a recent trip to Paris. It kept track of my flight information well enough. The only problem was when I went to the airport in Paris to fly back to the United States. The app would not display the barcode for my ticket. I would think this would be the sine qua non of airline apps. I still had to get a paper ticket which didnt make much sense to me. There has been an update so that might now have been addressed.

Im Their Son about Air France - Book a flight, v6.4.1