Tonic - AR Chord Dictionary

Tonic is the world's first AR chord dictionary. It lets you visualize chords on your own piano using augmented reality, helping players who don’t read sheet music or prefer chord charts. Tap into 130+ chords with standard notation and clear finger-placement guidance.

Key features include: over 130 chords with notation; flat and sharp display modes; supports 88, 76, 61, 49, and 25-key pianos; three selectable octaves; and a delightful app icon.