This app was mentioned in 1 comment, with an average of 3.00 upvotes
https://play.google.com/store/apps/details?id=com.pure.purelounge
https://itunes.apple.com/us/app/pure-connect/id397745107?mt=8
vs.
https://play.google.com/store/apps/details?id=com.sonos.acr&hl=en
https://itunes.apple.com/us/app/sonos-controller/id293523031?mt=8