Seems like the newish ">" to expand apps throws people and they post about it almost daily. So an idea...
I wonder if the UI would be simpler if you moved the ">" to the other side of the name.
In other words instead of
> Rule Machine
you changed it to
Rule Machine >
Or maybe even
Rule Machine > (click to expand)
Or lastly
Rule Machine > (click to expand)
Any of these might cut down on the confusion. It's not logical having the expansion link before the app name. Just a thought.