Do you mean "Qobuz Connect"?
Its an app that only works with compatible gear. One big advantage is that it lets you switch between players, even midstream. However its still the same digital file going to your player. Some people claim it sounds better but I don't find it sounds any different. One drawback for me is that it won't play your local collection.
Remember that opinions are a dime a dozen around here. Try QC for yourself. It's free if you have a Qobuz account and doesn't interfere with your existing apps so choose the one that fits your mood at the moment.

