Check your HBO GO app for updates Android and iOS users. Looks like HBO GO is now supported for Chromecast use. Google is also saying there is support for Chrome Tab Browser casting with HBO GO. Chromecast has been a hit, giving users the ability to move content from their small smartphone screens to their large HD televisions. Initially it launched with just Netflix, YouTube, Google Music and Google Videos. Now with HBO GO and Hulu jumping in with compatible apps, we are sure to see more apps follow.