Apple has posted a new contest on the App Store [Direct Link], offering a $10,000 gift card to whomever downloads the fifty billionth app from the App Store, similar to previous promotions. Apple said during its most recent earnings call that the company has surpassed 45 billion app downloads. Apple's most recent contest was for 25 billion downloads back in February 2012. This time around, Apple is also giving $500 gift cards to the next fifty people to download apps after the fifty billionth.