I currently subscribe to Spotify premium and I like the service, except Spotify seems to refuse to add Google cast support on iOS and only supports their own Spotify Connect and has no application for playing music on Android TV. I've been thinking of switching to Google Play Music, or Amazon Cloud Player w/ Prime music. I know Google Play Music will work on the Nexus Player, and I'm sure their Play Music app on iOS will cast to my Nexus Player, but I was wondering if anyone knew if Amazon Cloud Player w/ Prime music on iOS could cast to a Chromecast or Android TV device?

BTW, I have tried TV Player for Spotify, and it's unusably bad and clunky.