Freemium = 'not really'

I've been playing QuizUp, a freemium game, for a year and a half now. It's a free app, but it does allow in-app purchases of 'experience point' multipliers, a buck to double your experience points (or whatever the game calls them) for ten minutes, a couple more bucks to double the experience for half an hour or an hour. I have yet to pay a single penny through the game, but I know that freemium games are wildly profitable - Clash of Clans had more than $1.8 BILLION in revenue in 2014.

Thankfully, South Park laid it all out...



This last one, I warn you, is more than a little NSFW.