keffeine

Turn your device into a dedicated “now playing” screen for your KEF speakers with keffeine — a simple, always-on display with skip-focused controls.

keffeine is a companion app for your KEF LSX II wireless speakers. It turns your iPhone or iPad into a dedicated “now playing” screen with focused controls and a simple, glanceable layout. Use this as an always-on display next to your existing entertainment system.

Ambient Display: Minimal UI and Artwork stays visible while tracks change; fallback only appears when needed.

Intuitive Controls: Skip tracks, play/pause, and adjust volume with large touch targets.

Adaptive Layouts: Layout adapts to portrait and landscape and scales across iPhone and iPad.

Disclaimer: keffeine is an independent app and is not developed by, affiliated with, or endorsed by KEF Ltd. KEF and related marks are property of their respective owners. The app is intended as a personal “now playing” companion for use with existing KEF products.

The app requires physical KEF speakers and configured Tidal or Deezer connection for library access.