Im new to this digital family. Recently I was planning to buy an app template from CodeCanyon and mix it with my own app, the app will be for iOS and Android device. I need advice from all of you who know how to calculate the revenue based on the ads. How much I can earn from the ads shown in the app? and which provider is the best to choose as ads partner, iAds, Admob, revmob or what you can suggest to me?