Originally Posted by
bhbloke
If you have AA flights then you won't get much functionality from the BA app.
Originally Posted by
corporate-wage-slave
AA is fundamentally on SABRE and BA on Amadeus, the interface between them uses 1970s architecture and so has many limitations. So for keeping up to date with things like time changes, AA is best for AA metal, BA for BA metal. You may be able to check-in for the AA flight on BA, particularly if it is a codeshared flight, but it doesn't take much for it not to work, typically the AA app will then work. Essentially I use both, being a "guest" user on AA, and for any query I have I work out whether the answer is on SABRE or Amadeus, then use the apps appropriately. So if the AA app shows a cancellation and BA app does not, for AA metal the AA app is going to be correct.
I guess I'm going to need both apps installed. Believe it or not, in the past when I flew BA and AA, I never used the apps. I used paper tickets and Google to keep track of flights. I would also use the web browser to log into my BA and AA accounts to keep track of points. It was only recently that I concluded that it was faster to use the apps to access my accounts.
corporate-wage-slave, are you saying that you use AA's app as a "guest user" even though you're crediting them to BAEC? Were you able to check-in with AA's app?