“Users are made to accept an agreement that allows Facebook to “record audio with the microphone….at any time without your confirmation.”
The TOS also authorizes Facebook to take videos and pictures using the phone’s camera at any time without permission, as well as directly calling numbers, again without permission, that could incur charges.
But wait, there’s more! Facebook can also “read your phone’s call log” and “read data about contacts stored on your phone, including the frequency with which you’ve called, emailed or communicated in other ways with specific individuals.”
…most apps on Android and Apple devices include similar terms to those pictured above”