Well, App Privacy Report is already snitching on some offenders, so to speak.
SoundHound made 9 network connections to domains such as facebook, midomi.com, googleapis.com, localytics.com, and their own soundhound.com, right around ten minutes ago. Thing is, I haven't launched the app at all today, nevermind since I updated this afternoon and rebooted. What are you doing SoundHound?
Plex was also a bit active, talking to my Plex server and a friend's Plex server, along with their own network. I haven't launched Plex today either. What are you up to Plex?
It will be interesting to hear what's going on as people look into this more in depth.