Six color blocks appear on screen. Only one is subtly different. Find it, tap it, move on. At first the answer leaps out — but as your level climbs, the differences shrink, and the grid grows from 2×2 to 3×3 to 4×4. Simple rules. Endless depth.
No timer. Pure accuracy. Slow down, train your eye, climb the ladder.
15-second countdown. Every correct tap adds 0.5s. Pure adrenaline.
No clock, no pressure. Just you and the colors.
The rules take a second. A perfect run takes weeks. OneColor strips away noise to focus on the one thing that matters: color itself. Clean UI, gentle haptics, minimal ads. Built for that little spark of joy when you spot the odd one out.