Submission + - Time is money: How Clash of Clans earns $500,000 a day with in-app purchases (gyrovague.com)
jpatokal writes: A look at the psychology behind Supercell's Clash of Clans, until recently the top-grossing iOS app for in-app purchases, and how it compels the game's players to hand over $500,000+ a day in real cash for virtual gems.