I recently started playing Words with Friends on my phone and I quite like it apart from the pesky ads that show up after every single move. It was an interesting study for me though, so I dug a bit deeper and learnt about the gaming industry in the process. Every single number in there was plugged in using publicly available data; app usage data is notoriously hard to find even with AppAnnie and the likes.
[slideshare id=58750539&doc=deck-160226103134]
Note: This is something I created and has no affiliation to the game or the company whatsoever.