Krillion

Toon Tone is a free color memory game. Guess the exact color of cartoon characters using HSB sliders. Test your color perception across 5 rounds.

Replace Doomscrolling and Social Media. Become an interesting person. Nerdsip is world's best micro learning app. Like Duolingo, but for ANY topic.

Quick browser-based tests for reaction time, memory, focus, aiming, and visual tracking.