Sonos Support
We do not currently integrate with the Sonos app, but have many Sonos users who are able to play directly to Sonos using Airplay / Airplay 2 using Apple phones and some Android phones that natively support Airplay.
Please access the native Airplay controls from your phone (on IOS, swipe down from the top right of the screen and choose the airplay icon). You must be connected to your WiFi network on which your Sonos devices are connected to.
(See below image. You want to click the Triangle with concentric circles on the right where it shows the WeR1 set playing)
We have a feature enhancement to support both the IOS Airplay and Bluetooth controls from within the app and hope to bring you this feature soon!