On Christmas, Facebook welcomed another million new Facebook for iPhone users. The Facebook for iPhone app gained about 4.5 million users for the month, going from 53 to 57.5 million users (Facebook for iPhone includes all iOS devices?). Here’s the chart:
Here’s the corresponding chart for Facebook for Android. Android’s slope is impressive, but shows no spike for Christmas. Point to note, while Facebook’s Android app is growing fast, it isn’t catching up to the iPhone app. The Facebook for Android app gained about 4.25 million users, going from 17 to 21 million users.