We know the Facebook app tracks where you go via GPS. Ithink it is safe to assume the Twitter app does the same. There have been many rumors that the Facebook app (and others) might be listening into our conversations via our phones. The article below offers confirmation.
There is a simple solution: uninstall the Facebook app from your phone. Then login to your account via your phone’s web browser. Bookmark that. The web interface for Facebook (Twitter too) is very good and should provide more privacy from your microphone. The downside (if it is a downside) is you won’t get those notifications on your phone when somebody responds to your posts.
I uninstalled both the Twitter and Facebook apps on my phone and use only the browser web access. Works great and I do not miss being bothered by all those notifications. Try it.
Here’s how I got to bottom of the ads-coinciding-with-conversations mystery.Source: Your Phone Is Listening and it’s Not Paranoia - VICE