A relaxing drawing app that turns your lines into music

Slow Fourier is a free drawing app for calm. Draw with your finger or mouse and your line becomes a mandala built from circles (a Fourier series), then plays back as sound. There is no score, no account and no timer pressure: nothing you draw leaves your device.

How it works

Draw a line, tap calm, and watch the circles redraw it while you hear it. Choose free drawing or mandala mode, with glow, bloom, mirror or 4, 8 and 12-fold symmetry. Save a card, share a link, or compile your drawing into a short song.

The slow four store: Sums of Circles, the coffee-table book and the coloring books, and a calm shelf from Andrews McMeel Universal.

About Slow Fourier · How a drawing becomes a song · Hue Fourier: paintings as music · Macguffin Co