For streamer such as LP10 Nuprime Edition, there is not really any "App features", mainly device features.
Because users would connect to the device through Qobuz/Tidal/Spotify Connect. You are using the default streaming apps, not LP10 App.
Or you can use Google Chromecast or Apple AirPlay2 for streaming through your mobile phone apps.
This is the key difference between a streamer and a music server. Music server such as Audirvana or Roon includes player and library management, and proprietary DSP to make the playback sounded very good.