Just asking to be certain. Are you doing this using Adobe RoboHelp? Or are you generically building apps using PhoneGap?
I use RoboHlep 2015 output only
For what it's worth, I've fired off a message to Adobe and some others to alert them to this thread. Hopefully we will have an answer before too long.
Out of idle curiosity and myself not being a Smart Phone user, what value do you feel you achieve by having a RoboHelp project produced as an installable app? What does the app do? Admittedly, I've scratched my head about that one since I saw it emerge as a feature.
One example could be carers visiting homes who need reference material when
they may have their phone but no signal.
Hmmm, interesting thought.