App Store Generates $20 billion in 2015

Apple said its customers worldwide spent 20 billion US dollars in its App Store in 2015 (about double the equivalent figure in 2013 and up from about 14 billion dollars in 2014). Apple added that the App Store has brought in nearly 40 billion dollars for developers worldwide since 2008, with more than one-third of that figure generated in 2015. source: Apple statement