Angry Birds (video game) featured app on the UK App Store in February 2010 and quickly reached No.1 there, it reached the No. 1 spot on the paid apps chart in the US App Store in the middle of 2010 and then stayed there for 275 days. The initial cost to develop "Angry Birds" was estimated to exceed €100,000, not including costs for the subsequent updates. For the iOS version, Rovio partnered with distributor Chillingo to publish the game to the App Store. Chillingo claimed to have participated in final game polishing, such as adding visible trajectory lines, pinch to zoom, pigs' grunts, birds'
Angry Birds Stella Angry Birds Stella Angry Birds Stella, also known as Angry Birds Slingshot Stella, was a puzzle video game and the second spin-off from the "Angry Birds" series, developed by Rovio Entertainment. The game was marketed to females by using characters that have a spirit of female heroism and friendship, but was intended to appeal to all sexes. Announced on February 13, 2014, Rovio stated that the game would be accompanied by a toy-line with Telepods, and a television series. The game was released on September 4, 2014. This game is based on an Angry Birds character who was first introduced