Facebook now has more than 1.5 billion users, more than 1 billion of which use the service daily.

More specifically, in its third quarter 2015 earnings announcement today, Facebook revealed it now has passed 1.55 billion monthly active users (up 14 percent year-over-year), and 1.39 billion are mobile users (up 23 percent year over year).

Facebook also shared that it now has 1.01 billion daily active users (a 17 percent bump year over year) and 894 million mobile daily active users (a 27 percent increase year over year). Put another way, 65.16 percent of all Facebook members use the service daily, and 64.32 percent of mobile members use it daily as well.

Once again, Facebook has managed to keep all its numbers growing, albeit slowly, on a quarter-over-quarter basis.

Facebook's monthly active users and daily active users by quarter

Facebook’s monthly active user base grew by more than 4 percent in the third quarter — the company’s user base hasn’t grown that much in a single quarter since the first quarter of 2014.

Facebook MAUs % change quarter over quarter

Above: Facebook MAUs % change quarter over quarter

Image Credit: VentureBeat

Yet the really interesting figure is always on page 7 of the company’s earnings slides (PDF):


Between Q2 and Q3, Facebook added 72 million mobile-only users to reach 727 million total. That means mobile-only users now account for 46.90 percent of the social network’s total members. This number climbs every quarter, and it will likely reach the 50 percent mark at some point next year.

Here is how Facebook distinguishes this category:

Mobile-only MAUs are defined as users who accessed Facebook solely through mobile apps or mobile versions of our website, or used our Messenger app, in the last 30 days of the given quarter. The number of mobile-only MAUs do not include Instagram users unless they would otherwise qualify as such users based on their other activities on Facebook.

Even though Facebook doesn’t break out this number in its earnings release, this is the one to watch. Facebook’s growth will continue to slow due to its size, but the revenue share coming from mobile is still growing. Mobile-only users are key to a social network that has managed to successfully transform itself into a mobile-first business.

Here are the other four charts for the numbers Facebook traditionally highlights in its releases: