title: In Android how to check app is installed in your phone or not
body: <p>How to check if app is installed or not on phone. If the app is installed, open the app, otherwise open the appstore link to download the app.
  If the app is already there, I used the following code.</p>
  <pre><code>Intent LaunchIntent = getPackageManager().getLaunchIntentForPackage(&quot;package name&quot;);
  startActivity(LaunchIntent);
  </code></pre>