Hear the target. Turn the controls. Find the match before the clock runs out.
Circuit Piano is a sound puzzle game where every move changes a live synth or guitar pedal. Listen for the difference, watch the waveforms line up, and tune your way to a higher score. No music theory or electronics experience needed.
One purchase includes all 1,024 circuits and every feature. No in-app purchases. No ads or subscriptions. Play offline.
FIND THAT SOUND
Hold GOAL to hear the sound you're chasing. Slide a fader or turn a knob to shape your own. A small adjustment can turn a harsh buzz into a warm tone. Use your ears and the moving traces to find the match.
KEEP YOUR RUN ALIVE
Tune each circuit before time runs out to build your score. The challenge adapts as you play, with more demanding sounds and tighter clocks as you climb. Chase your best run or compare scores on Game Center.
1,024 CIRCUITS TO EXPLORE
Discover the sounds of synthesizers and guitar pedals, from warm filters and gritty fuzz to wah and echo. Every circuit is simulated live, so the controls change the sound as you move them. Varied targets and starting points give familiar circuits a fresh challenge.
CHALLENGE A FRIEND
Send a puzzle and your score in one link. Your friend gets the same starting point and a mark to aim for. Send the higher score back to keep the challenge going. An eight-character code lets you revisit any exact puzzle.
PLAY WHAT YOU TUNE
Turn any circuit into an instrument with the built-in piano keyboard and sixteen-step sequencer. Explore a melody, make a pattern, or connect a MIDI keyboard to play with velocity, sustain, and pitch bend.
A BENCH YOU CAN TOUCH
Adjust sliders, knobs, thumbwheels, and ribbons. Inspect detailed circuit boards and flip them to see the copper underneath. Watch your sound through 32 live scope channels, with haptics that make the controls feel physical.
MADE FOR iPHONE AND iPAD
• Play offline, with no account required
• Sync progress privately with iCloud
• Game Center leaderboard and achievements
• Apple Pencil support on iPad, including tilt for fine control
• Hardware keyboard commands
• VoiceOver, Dynamic Type, Reduce Motion, and Dim Flashing Lights support
• No tracking
All circuits. Every control. One purchase.
