I have just released an update for WaveFlower, a toy app I created some years ago:

https://apps.apple.com/fi/app/waveflower/id1145966102

This apps the origin of the music visualiser in Toot!. It uses the microphone instead, so you can sing to it, or play your favourite instrument, or just make weird noises at it. It will respond by drawing shapes based on the sound waveform. It can be pretty mesmerising!

‎WaveFlower

‎WaveFlower gives you a fun way to discover hidden shapes in sound. It will use your microphone to draw intricate shapes from the sound around you. Try it with music, your voice, or any other sounds you can think of!