The Google Home app is one app to set up, manage, and control your Chromecast, Chromecast Audio and Google Home devices. If you own a Chromecast device, with this app you can: Easily browse trending and popular content from your Chromecast-enabled apps. Use search to find content by movie, TV show or actor. Play, pause and change volume across all your Chromecast devices. Customize your TV screen with beautiful imagery. Discover new apps, offers and content. If you own a Chromecast Audio device, with this app you can: Sync your speakers and Google Home together with Multi-room groups, so you can enjoy playback in every room. Play, pause and change volume across all your Chromecast Audio devices. Discover new apps, offers and content. If you own a Google Home device, with this app you can: Control Google Home settings, like your default music provider or your location. Sync compatible devices with Google Home like smart lights, thermostats, Chromecast devices and more. Discover new features and offers. Some features may not be available in all countries.