There are 12 apps/applications that can boast of having a billion users. Can you name them?

Here’s a hint: They are owned by only three companies, none of them Apple.

And that said, Apple does not yet have a billion iPhone users. Though Apple has sold just about a billion iPhones since inception (I remember when selling 10 million iPhones seemed an amazingly unreachable achievement), that’s not the same thing as having a billion users.