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In honor of the App Store's 10th birthday - it launched in July 2008 - app analytics firm App Annie has compiled a comprehensive look at the most popular apps of the last 10 years.
Facebook took the crown as the most downloaded iPhone app of all time, but there are plenty of surprising runners up: Snapchat made the list, despite reports that user growth is slowing. And even though both Apple and Google make their own video chatting apps, Skype is still one of the most popular apps in the world.
Here are the 10 most-downloaded iPhone apps of the last decade:
