The 870 top grossing apps collect over 40% of the revenue(metakite.com)
metakite.com
The 870 top grossing apps collect over 40% of the revenue
http://metakite.com/blog/2015/01/the-shape-of-the-app-store/
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http://metakite.com/blog/2015/01/the-shape-of-the-app-store/
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