I have noticed Messages App in macOS has the option to share screen, I was just wondering if could use this to share my mac screen with user watching this on iPad/iPhone? I have tried this, within Messages I clicked Buddies > Invite to Share My Screen and it started loading, but the user hasnt received anything. Any thoughts?
I haven't used them but RealVNC make a Viewer app for iOS and a Connect app for macOS. https://www.realvnc.com/download/viewer/