title: Amazon SNS topic,subscription and push notifications management from Android,iOS device
body: <p>I am a newbie to AWS and am exploring it for a mobile application targeted for Android and iOS platforms.One of my application's requirement is to provide push notifications wherein users subscribe to particular topic(s) and then get notifications for those topics.I had gone through Amazon SNS which intends to do exactly the same. Moreover, I have also tested sending push notifications to registered devices from AWS console. This works like a charm. </p>
  
  <p>However,this is a manual process and I want this to be dynamic but without using an intermediate server. Rather I want to do this from the device(s) themselves using AWS Android, iOS SDKs. Thus I have following queries-</p>
  
  <ol>
  <li>Can the <strong>Topics</strong> for SNS push notifications be created from within app?</li>
  <li>Can <strong>Subscriptions</strong> to a particular topic be managed from the app itself?</li>
  <li>Most importantly can push messages be <strong>published</strong> from devices to all subscribed devices of that topic? </li>
  </ol>
  
  <p>Thanks in advance !</p>