Apple has launched a countdown to 50 billion app downloads, and is awarding a $10,000 App Store gift card to the downloader plus $500 gift cards to the next 50 downloaders following the landmark download. The representative countdown progress is seen in iTunes under the App Store section.
No purchase or download is technically necessary. According to the rules of the contest, Apple only accepts 25 entries per person or iTunes account per day, and the account holder that downloads the entry is considered the winner, regardless of who actually selects the app for purchase. The awards are redeemable in the iTunes store, App Store, and iBookstore only.
