I found the AOPA announcement:
"The July 21 update allows pilots with iFlightPlanner Core or Premium memberships to send flight plans from iFlightPlanner for AOPA to ForeFlight, Garmin Pilot, FlyQ, FltPlan Go, Jeppesen FliteDeck Pro and Jeppesen Mobile FliteDeck, and WingX via the iFlightPlanner for iPad and iPhone apps."
“Right now, iFlightPlanner for AOPA can send flight plans to popular iOS EFBs, and we are reaching out to Android EFB developers to work on similar integrations,” said Eric Rush, AOPA director of IT product development.
Looks like it is a limitation imposed by iFlightPlanner. I guess those of us with the base AOPA version are SOL. Not really a problem now that I have iFly on my desktop, but before I did, I did use the AOPA version for my desktop planning which I prefer when at home.
Best, John