title: How to implement my own custom advertisement in my own android application using predefiend SDK's for ad (like admob etc)
body: <p>I am working on advertisement integration for my android application, the problem is that I'm having 3 applications live on android app store. </p>
  
  <p>Therefore I want that my ad SDK will show ad of these 3 applications only in these application. Means 1st application will show ad of only 2 and 3 my application, no other ad, I want to use pre- defined SDK's available on internet (like admob, revmob etc). </p>
  
  <p>Guys please help me regarding this...</p>