Ninth Cell: IQ Test & Logic

How sharp is your reasoning? Ninth Cell is a free, 20-minute IQ test built from logic puzzles — and your score is never hidden behind a paywall. Most IQ test apps make you pay to see your result. Ninth Cell shows it for free, every time, with an honest range instead of a single magic number. HOW THE TEST WORKS • 24 questions in 20 minutes — or a 10-question quick test in 8 minutes • Adaptive: get one right and the next is harder; miss one and it eases off • 16 puzzle formats across five skills: 3×3 matrices, figure series and analogies, number series, number grids and analogies, rotation, mirror and water images, paper folding, cube nets, odd one out, hidden figures, counting shapes and working memory • Pictures and numbers only — no trivia, no vocabulary, fair for every language • Two warm-up questions first, with the rule explained AN HONEST SCORE • Your score on the familiar IQ-style…