Angry Birds is a video game franchise created by Finnish computer game developer Rovio Entertainment. Inspired primarily by a sketch of stylized wingless birds, the first game was first released for Apple's iOS in December 2009. As of October 2010, 12 million copies of the game were purchased from Apple's App Store, and then the company started to design versions for other touchscreen-based smartphones, including the Android, Symbian and Windows Phone operating systems. It has since expanded to video game consoles and PCs.