Because data is hard to come by on active usage for top mobile apps, it’s hard to understand how wide a footprint the very highest-grossing games have. Plus, with a Renaissance in mid-core games over more casual titles during the past year, it’s often not the best-known or most widely popular games that perform the best financially. A small set of very loyal players can push a game to the top of the grossing charts, because they individually spend more than less committed players.

Onavo, a Sequoia-backed company that tracks active usage for millions of apps through its mobile data compression products, took at a look at the highest-grossing games.

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