title: Sending the user to another application in android
body: <p>I'm new to android and am trying to make an application that when the user presses a particular button in App A, he is sent to App B. The user can then come back to App A by pressing another button in App B. No content is transferred from one app to another. </p>
  
  <p>I want to accomplish this by making custom intents for both the applications. How should I start with this? Also what exactly is <code>Broadcastreceiver</code> and do I need to use it for the above mentioned problem?</p>
  
  <p>Thanks!</p>