title: Redirect to appstore for app update objective c
body: <p>I want to redirect to appstore for application update. From my application, i am able to redirect to appstore, but there is "Open" button instead of "Update".</p>
  
  <p>I have used following code for appstore redirect for app update.</p>
  
  <pre><code>NSString *iTunesLink = @"itms://itunes.apple.com/np/app/appname/id123456789?mt=8"; 
  
  [[UIApplication sharedApplication] openURL:[NSURL URLWithString:iTunesLink]];
  </code></pre>
  
  <p>Have i missed the procedure? Thank you.</p>