I agree.
Rose One works fine on my MacBook Air ( M4) but on iPhone 16 it is very poor. Major issue is the screen freezing, particularly when switching, say, from RoseTube to Rose Radio or Qobuz. Even after all other apps have been closed, the issue still persists.
The usual work arounds (deleting and reinstalling app, rebooting, factory reset etc. ) have been tried but to no avail.
I don’t know whether the freezing issue is an iOS “ exclusive” or if it occurs on Android devices also.
For streaming, I now use Qobuz Connect which now works perfectly on my RS520. The latest version of the Qobuz app is excellent IMO.
For all other functions I will stay with Rose Connect Premium.