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 Seasons Angry Birds Seasons Angry Birds Seasons is the second puzzle video game in the "Angry Birds" series, developed by Rovio Mobile. Based on "Angry Birds", "Angry Birds Seasons" was released for devices using Apple's iOS in October 2010 and then it was released on other platforms starting in December 2010. There have been no new releases since 2016 and it appears that Rovio has discontinued development of the game. Just as in the original "Angry Birds", players use a slingshot to launch an assortment of birds at nearby structures, with the intent of hitting targets located on or within them.