title: Unity3D Ads Advertisement.IsReady() always being false on iOS
body: <p>I'm having an issue with Advertisement.IsReady() always being false on iOS in a Unity game. In the editor, I get the default screen that says "This screen would be your ads".
  I've double checked the game id and both the game id in the editor and the dashboard match. I'm using the Unity services to integrate it.</p>
  
  <pre><code> if (Advertisement.IsReady())
      {
          Advertisement.Show();
      }
  </code></pre>
  
  <p><strong>Update</strong></p>
  
  <p>I finally got an Android build and the ads work fine but still not able to get working ads in iOS.</p>