At VIZIO, we’re constantly striving to improve our products and deliver a world class viewing experience to our customers. We appreciate that you took the time to review our product. In order to cast an app to the TV using SmartCast, the app you wish to cast must be Chromecast supported. To check to see if the app you are wanting to cast is Chromecast supported, please follow this link and search for the app you are wanting to cast: https://www.google.com/chromecast/built-in/apps/ If additional assistance is needed, click on "Account" in the Vizio Mobile App, then click "Support" and "Contact Us." Thanks!