Real circuits, played by ear
Hear the target. Turn the controls. Find the match before the clock runs out. Every move changes the sound of a live synth or guitar pedal.
Listen. Adjust. Find the match.
Hold GOAL to hear the target, then move the controls to shape your sound. Listen for the difference and watch the waveforms line up. No music theory or electronics experience needed.
From the first turn of a fader to the moment the sounds meet — this is the bench you'll play.
Find your next sound.
Warm filters. Gritty fuzz. Wah and echo. Explore synths and guitar pedals simulated live, with varied targets and starting points that keep familiar circuits interesting.
Keep the run alive.
Tune each circuit before time runs out to build your score. The challenge adapts as you play. Share an exact puzzle with a friend and send the higher score back.
Play what you tune.
Every circuit is also an instrument. Try a melody on the built-in piano, make a pattern with the step sequencer, connect a MIDI keyboard, or play live sound through it with a microphone and headphones. Use every input free during the circuit's time limit. Complete unlocks untimed play, including after you tune a circuit.
Play free. Make it Complete.
Play 128 circuits with four scope channels and every input and control during the circuit's time limit. Play any exact shared code free. Complete is one permanent purchase for all 1,024 circuits, 32 scope channels and untimed instrument play. No subscriptions, ads or account required.
Get it on the App StoreFor iPhone & iPad · Play offline · Progress syncs with iCloud