PolyFauna 2 is a free music and radio app developed by Radiohead. It is an experimental collaboration between Thom Yorke, Nigel Godrich, Stanley Donwood, and Universal Everything. This app is available only for Android devices.

The app takes you on an immersive journey into an evolving world where your screen is the window. You can move around to look around, and the more you explore, the more you discover. The app features a unique combination of music, art, and technology, creating a surreal and otherworldly experience. PolyFauna 2 is a fascinating app for music lovers who want to explore music in a different way.