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 scale, plus the range it most likely falls in (for example 112, likely 100–124) ◆ Scored with a standard psychometric model (item response theory) that weighs how hard each question was ◆ Clearly labelled an early estimate — no fake precision, no "genius certificate" NEW PUZZLES EVERY TIME Every puzzle is generated by code from logic rules, then checked to have exactly one correct answer before you see it. Thousands of puzzles per level means you can't memorise the answers, and a retest is a genuinely new test. DAILY PUZZLE & LEADERBOARDS ◆ One new puzzle a day — the same for everyone — and a streak to keep ◆ Leaderboards for the full test, the quick test and today's fastest solve ◆ Share your score card and challenge a friend to beat it PRACTICE & TRAIN ◆ Practice any skill — pattern logic, number logic, spatial, visual reasoning, working memory — at eight difficulty levels ◆ Hints on request and the rule explained after every answer ◆ Track your scores over time OPTIONAL EXTRAS The test and your score are always free. If you want to go deeper: ◇ Full report — your score in each skill, every question you missed with the rule explained, and what to practise next ◇ Practice packs — unlock levels 4–8 for a skill ◇ Lifetime pass — every report, past and future, plus all practice packs, in one payment One-time purchases only. No subscriptions, no timers, no "today only" pressure. THOUGHTFULLY BUILT ◆ Works offline — no account needed ◆ Light and dark themes, large text, reduced motion, colour-blind-safe puzzles ◆ No ad networks. The only promotions are occasional cards for our other games IMPORTANT Ninth Cell gives an estimate of reasoning ability for curiosity and practice. It is not a clinical or diagnostic IQ test and must not be used for hiring, school admission or medical decisions. Inspired by classic matrix reasoning tests; not affiliated with any test publisher. PRIVACY Your scores stay on your phone. If you choose to, you can share anonymous answers (never your name or contacts) to help calibrate the test. Delete your data any time from Settings. Full policy: singleorigingames.com/privacy Made by Single Origin Games, an independent studio. Feedback: [email protected]