A mother from the UK has spoken of her shock at becoming the customer to make the 10 billionth download from the Apple App Store.
Gail Davis, from Orpington, Kent, said that it was her two daughters who purchased the Paper Glider game from the online store.
Apple, who run the store for its 160 million iPhone, iPod touch and iPad users, have declared Ms Davis the winner of its Countdown to 10 Billion Apps competition meaning she will receive a 10,000 dollar (£6,250) iTunes gift card.
Ms Davis told BBC Radio 5 Live: "I have to confess it wasn't me who downloaded it but my daughters.
"It's a game to see how far across a room you can launch a paper plane. I had no idea when Apple phoned me, I thought it was a prank and I declined to take the phone call.
"My daughters told me they had downloaded it and they knew there was a competition and that we may have won it.
"I had that moment of blind panic but Apple kindly phoned me back and said I was a winner."
Philip Schiller, Apple's senior vice president of Worldwide Product Marketing, said: "With more than 10 billion apps downloaded in just two and a half years, a staggering seven billion apps in the last year alone, the App Store has surpassed our wildest dreams.
"The App Store has revolutionised how software is created, distributed, discovered and sold. While others try to copy the App Store, it continues to offer developers and customers the most innovative experience on the planet."
The App Store offers more than 350,000 apps in 20 categories to users in 90 countries around the world.