Do you play a lot of Candy Crush Saga or Clash of Clans but almost never spend any money on in-app purchases? If so then you’re free riding on the backs of a tiny number of users who are spending ungodly sums on virtual goods that enhance their enjoyment of their favorite games. Re/code reports that a new study from app-testing firm Swrve claims that half of all in-app purchases are made by just 0.15% of mobile gamers, which is pretty stunning considering how lucrative in-app purchases have become for mobile game developers. How insane is this? Well let’s crunch some numbers on King, the company behind Candy Crush Saga that generated a stunning $1.88 billion in revenue last year. In