title: Android - Share data between apps over the internet
body: <p>I want to build a app with sharing option. I mean that users can pass simple data between their contacts, that use the app. And I don't want to use servers of mine.  </p>
  
  <p>Is it possible to use existing platforms such as Facebook, Google, or even with android APi only?<br>
  If it can be done, how can I do it?</p>