The GEL you know, built for the booth. One thumb, in the dark, twenty seconds between songs.
Tap once per colour change and the night builds itself. See what you have already played and what punch you have not spent yet. Read any colour off the stage with the camera. Hold any tab for Booth Mode - a deep red interface for night vision, with the swatches left true.
Free. No account, no subscription, no ads. Nothing leaves your phone.