title: Difference between apk (.apk) and app bundle (.aab)
body: <p>Recently Google brought up a new feature <code>app bundle</code> which is a pretty similar concept to APK except its flexibility and architectural differences. </p>
  
  <p>I have read out lots of blog/articles to understand how app bundle works in devices in comparison with APK file.</p>
  
  <p>What is the actual internal working process of app bundle and how it works on Android devices starting from Google Play Store?</p>