the first things most apps try to do is attempt to connect w/ graph.facebook.com at launch (and periodically) this is true for your banking apps to music apps

the first things most apps try to do is attempt to connect w/ graph.facebook.com at launch (and periodically) this is true for your banking apps to music apps like Pandora and Spotify you can get Netguard, which functions as VPN/Firewall and get visibility into the data exfilitration that is happening right now on your Android phone (and block some of it). Similar things should exist on iPhone too CCC had some coverage recently, but this has been happening for a long long time - https://www.youtube.com/watch?v=y0vlD7r-kTc https://www.youtube.com/watch?v=y0vlD7r-kTc * google apps are also constantly trying to phone home and panic when they cannot connect to the mothership, causing signficant battery drain... I haven't seen them trying to call facebook directly though