Originally Posted by
kiwicanuck
In my experience, the watch apps don't seem to work until the first time the app has been opened on the phone after pairing the watch. The same issue occurs when new update is installed.
Other apps seem to work fine. Delta's app, however, seems to mandate that you open it on the iPhone first, even if it hasn't been updated. I'm going to experiment and see if that's absolutely required or if you only need to do it once every x hours/days.