I want to make some financial plans for a project, not sure if its gonna be facebook or android yet.
I'm seeing many free android app games, indie or from some big companies, always have an ad box at the bottom of the UI.
Some of the games don't even have a cash shop.
Thus I am assuming they are monetizing mainly from the ads.
If I am correct,
1) how do I find these ads?
2) And how much per DAU / per click / per click+purchase would the ads bring in?