The Flappy bird's success brings it's author 50K$ a day, while the game is free, from 50M download. AFAIK, all the money is from advertisement, I don't have any idea how it works, so I want to ask:
1/ What is the model bringing him that money? I.e advertisement money is payed per download or per click,.. etc...
2/ How is advertisement displayed? E.g does advertisement pops up in the middle of the game or what else?
3/ How advertisement money is calculated? E.g a cent for a download or a cent if banner is clicked,.. etc
4/ How does mobile advertisement compare to other platform like web game (e.g flash game)?
5/ Isn't it people are willing to pay more for mobile advertisement than other platform, e.g web platform?