https://finance.yahoo.com/news/facebook-announce-second-quarter-earnings-195205930.html > Facebook’s monthly active users number was still up 11% year-over-year. Its number of daily active users, 1.47 billion, was also up 11% year-over-year. > On Wednesday afternoon’s earnings call, Facebook CEO Mark Zuckerberg announced another way the social network measures and breaks out users: about 2.5 billion people at least one Facebook-owned app — Facebook, WhatsApp, Instagram, and Messenger — each day.