You can cast from the iOS app, the Android app and the Chrome browser. If the Chromecast sign shouldn't show up please do the following:
- Check that your device and the Chromecast are in the same Wifi network.
- Restart your device
- Restart the Chromecast through the Google Home app or by removing the Chromecast completely from your TV and then plug it in again.
If the Chromecast sign still shouldn't turn up please contact our support team at email@example.com.