Not good if you use a different program

I have Cathay Pacific membership but fly a lot of Finnair these days. This app is not terribly helpful.

1) The first screen of the app demands you to log into a Finnair Plus account or create one. If you just want to manage your existing Finnair PNR you cannot do so without signing up for Finnair Plus. Theres no way to bypass the screen.

2) When you do create an account and then use the app to manage a Finnair PNR it will silently overwrite your frequent flyer program to the Finnair Plus one you logged in with. You can manage the booking or do online checkin and change it back to a different OneWorld FF program but:

3) it fails to validate Cathay Pacific Marco Polo Club numbers. I can enter a BA or MH FF number but not a CX one.

SocialBandwidth about Finnair