This chart shows how brilliantly effective Facebook CEO Mark Zuckerberg's mobile app strategy has been (FB)

If there's one thing Facebook CEO Mark Zuckerberg doesn't have to worry about these days, it's that smartphone users aren't familiar with his apps. Facebook and its family of apps absolutely dominate screen space on Android phones, as this chart from Statista, which is based on info from Priori Data, shows.

Not only does Facebook-owned WhatsApp occupy the top spot, with roughly 88 million global downloads in the month of August, but Facebook owns six of the top ten most downloaded Android apps. The company's flagship Facebook social networking application is ranked number 4 — a testament to the wisdom of Zuckerberg's strategy, years ago, of spreading Facebook's influence through a collection of standalone apps.

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