Circuit Piano: Sound Puzzles

Hear the target. Move the faders. Match the sound before time runs out. Circuit Piano turns real analog circuits into sound puzzles and playable instruments. START FREE 128 circuits across every difficulty level, four live scope channels, every control, keyboard and sequencer, and MIDI keyboard input. Play offline without ads or an account. EVERY CHALLENGE IS AN INVITATION Open any shared eight-character code and play the same circuit with the same clock and scope, free. Send your score back and keep the challenge going. CIRCUIT PIANO COMPLETE One optional, permanent in-app purchase unlocks unrestricted access to all 1,024 circuits and all 32 scope channels. No subscription. Every circuit includes sixteen certified puzzles, different component builds, and multiple starting settings. Already paid for Circuit Piano or its permanent unlock? Everything stays included. Restore purchases with the same Apple Account. Designed for headphones. Made for listening.