SYMMETRY HUNTER
Photograph a repeating pattern — tiles, brickwork, wallpaper, textiles — and find out which of the 17 wallpaper groups you caught, with every mirror, glide, and rotation center drawn on your photo.
Free · one optional in-app purchase · no ads, no account
// how it works
Point. Shoot. Classify.
A deterministic geometric pipeline — not a black-box model — recovers the pattern's lattice, tests every candidate symmetry, and names the group. Entirely on your device.
See the invisible
Mirrors, glide reflections, and 2-, 3-, 4-, 6-fold rotation centers drawn directly on your photo. Flip to Structure view to see the symmetry the colors are hiding.
Collect them all
17 wallpaper groups, 7 frieze groups, and rosettes. Rarity follows reality: p4m is everywhere, a wild pg is a trophy.
Private by design
No account, no ads, no tracking, no photo uploads. Your finds and their locations stay on your phone.
// the mathematics
Why exactly 17?
Rotations, mirrors, glide reflections, and the crystallographic restriction that rules out five-fold repeats. Our guide to the 17 wallpaper groups, the 7 frieze groups, and rosettes explains each one, how to tell them apart by eye, and where they hide in tiles, brickwork, and textiles.