The apps run on the phone or tablet or computer.
The "Connect" app takes a step away.
i.e. Phone/Tablet>Wiim app>qobuz within the Wiim app
Phone/Tablet>Qobuz app w/Connect
Most streamers will have their own app (or a 3rd party app). Qobuz has to be inside that app to work. The Connect feature is one less set of programming protocols.