Avoid the app and airchina.

The app is not well developed, I booked a round trip using it and due to a bug my name was registered wrong.
Even worse, after that I showed to air China customers service the existence of bug they still refused to change the ticket or refund it.
Avoid the app and airchina in general.

Jakpipper about 中国国航-凤凰知音会员的行程管家, v4.1.3