User blog comment:THGA/Where does this app come from?/@comment-4995735-20130607122947/@comment-5709722-20130607124914

$1 million each month since the app has been released back in december 2010, this article says:

http://www.ewdn.com/2013/02/11/game-insight-secures-25-million-to-expand-internationally-founder-alisa-chumachenko-among-world-s-top-5-startup-women/

if thats only close to the truth it's a cash cow and they do have a lot more games on market.