Sudoku, in color you can read.
Colors instead of numbers, designed so everyone can tell them apart.
- Colorblind-friendly
- Shapes, not just colors
- No ads, no subscriptions
- 10,000 offline puzzles
Color you can trust
Nine colors, chosen so everyone can tell them apart.
The default palette stays distinct for the common kinds of color blindness, the same approach trusted in scientific figures. No squinting, no second-guessing which color is which.
Accessible all the way
Built to be read, every way you read.
Turn on Pattern Mode and every color also carries its own shape, so the board stays clear even when color alone is hard. Full VoiceOver, Dynamic Type, and Reduce Motion support. And Aikui speaks 50 languages, so the game meets you in yours.
Accessibility is never behind the paywall.
A new puzzle every day
One shared puzzle a day. No timer, no pressure.
Everyone plays the same Daily Puzzle. Keep your streak, and climb Game Center leaderboards for clean solves and lifetime mastery. Aikui is about depth, not speed.
Made your way
Set the mood, then play your way.
Premium palettes and board styles, light or dark to follow your device. Play cell-first or color-first, with pencil marks, undo, and mistake checks. Every one of the 10,000 hand-checked puzzles works fully offline.
No ads. No subscription. Ever.
Pay once. Yours forever.
One optional purchase unlocks everything, and you own it on every device you sign in to. Gentle and Easy, the colorblind-friendly palette, and Pattern Mode stay free for everyone.
Where color meets calm.