According to Mobile app analytics company Distimo the most popular apps around the world on every platform id Angry Bird. They published a list which has the Apps - Angry Birds, Facebook, Skype, Angry Birds Rio, Google Maps, iBooks, Angry Birds Seasons, Fruit Ninja, Talking Tom Cat, Twitter and they are topped the first 10 apps worldwide. It also says that users of the social media platform are more interested in the games as the 5 entries out of ten in the list are games. So, Angry Birds was selected as the most popular iPhone app of the year 2011 among all the Apps. Following is an infographic released by Distimo, which describes all the top Apps with their rankings.
Source : Distimo