Doesnt work with Chromecast Audio

I got this app only to use with Chromecast Audio, but it could not find my device, despite the fact that Google Home and Spotify both found it and Spotify can cast to it. I dont have any other Chromecast devices with which to try out the app. Im giving only two stars because the developer never responded to a question that I sent. If that is any indication, support for this app is not good.

MacMesser about Video & TV Cast for Chromecast: Best Browser to watch and stream free movies, webvideos, sports, live tv and camera roll videos, v1.8