Optic Illusion is Now Available

Optic Illusion — classic illusions, built and explained — is now on the App Store for iPhone, iPad, and Mac.

It gathers 72 optical illusions into a small museum of visual perception — 33 interactive, 14 animated — and every one comes with a direct explanation of what your eyes and brain are doing to cause the effect. Written for curious humans.

A few of the exhibits:

  • Rotating Snakes — a completely still image that drifts in your periphery
  • Adelson's checker shadow — two identical grays that refuse to match
  • a spiral that turns out to be circles
  • a black-and-white disc that spins up colors
  • the Penrose Triangle — three beams meeting at a triangle, but then the view turns and you see them perpendicular and not meeting at all.

No accounts, no analytics, no tracking, no third-party SDKs.

Free on the App Store. No in-app purchases, no subscription, no ads.

Get Optic Illusion