title: Flutter apps are too big in size
body: <p>I have good experience in android app development using java. Recently I came to know about flutter. So, I have tried to create a simple android app with flutter based on official <a href="https://flutter.io/get-started/codelab/" rel="noreferrer">tutorial</a>. But surprisingly the debug app size is 25MB and release apk costs more than 7MB. It is really larger when compare with native developed android app. </p>
  
  <p>Is there any way to optimize it?</p>