As it happened last year for the 10th Billionth app, the app download figure is nearing 25 billion and you may be the luck winner who will download the exact 25 billionth app. The lucky one will get the 10,000 $ gift card from Apple that can be used to purchase apps, books and music from Apple store.
You can visit Apple store countdown page which shows the approximate figure because it is changing rapidly and you must not rely exactly upon it because it may not be synchrinized and you may miss a chance to hit the 25 billion figure therefore think out of the box.
I wish you goodluck for winning this gift card.
You can also participate without purchasing an app and from your computer you need to fill a form as on this link and that’s all.