title: Build a chat application in ios using XMPP
body: <p>I am trying to build a chat application in ios. I came across <a href="https://github.com/robbiehanson/XMPPFramework/wiki/GettingStarted_iOS">XMPP</a> for ios. I am bit confused on how to move forward. Here are my doubts:</p>
  
  <ol>
  <li>Do I need to create an XMPP server to implement this application? </li>
  <li>Or are there any existing servers/services which can be used for the same purpose?</li>
  </ol>