Just over a week has passed since Apple posted up their 10 billion App Store download counter, and that’s all the time it took to hit this ridiculous milestone. Yes, Apple has sold / delivered over 10 billion apps to customers in just a few years. With Apple’s developer following and customers growing rapidly, we’re sure it won’t take nearly as long to hit 20 billion. The person who downloaded the 10 billionth app will be announced within a couple days according to Apple.