Unknown Pleasure is a music player for iPhone that offers an audio visualization feature inspired by Joy Division's iconic album cover. Users can swipe left or right to switch songs effortlessly. Double-tap functionality allows for easy pausing of tracks. Additionally, a unique feature includes swiping down to select music for playback, enhancing user interaction with the app.

This multimedia application, developed by Milk LLC, falls under the Music & Radio category. It provides a free license to users, making it accessible to a wide audience. To fully utilize the audio visualization feature, music tracks need to be downloaded directly to the device and should not have DRM protection.