The Mac App Store was released on January 6, 2011 as an update to all users using the newest version of OS X. After 24 hours of release, Apple announced that there was a total of more than one million downloads. It launched with over 1000 programs on January 6, 2011, including Apple's own "Work '09", "iLife '11", "Aperture" and apps made by other companies that were first made for the iPhone and iPad, such as "Angry Birds", "Flight Control", and Twitter for Mac. Most of the apps were games. "Angry Birds", a popular video game on the iOS App Store, was the number one paid app on the Mac App Store on the first day.