Browse Apps

Track your menstrual cycle with this privacy-first period tracker. Log dates, predict upcoming periods, and view cycle patterns -- all data stays on your device.

Watch Fourier epicycles draw 3D shapes — cubes, spheres, dragons, and more — using the Discrete Fourier Transform rendered in Three.js.

Find optimal bedtimes and wake times based on 90-minute sleep cycles. Wake up between cycles instead of during them.

Beautiful interactive visual introduction to Fourier transforms with epicycle animations.