iPhone · iPad · Mac · Apple Watch
SUS4 Capo Calc
Pick a key, get the capo position and shape. Done.

SUS4 Capo Calc solves a specific problem: you want to play a chord shape in a different key, and you need to know where to put the capo. Pick the key you want to sound in, pick the chord shape you want to use, and the app tells you the fret.
Available on iPhone, iPad, Mac and Apple Watch, the Watch version is useful on stage. You can check a capo position between songs without pulling out your phone. The calculation is instantaneous and covers every combination of target key and familiar chord shape.
Capo calculation is simple arithmetic, but doing it in your head mid-session breaks focus. SUS4 Capo Calc takes it off your mental load and gives you the answer in one tap.
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