About IQtonics
IQtonics is an online IQ test and brain-training site for adults and teens aged 16 and over, in English and Turkish. The main test has 40 original questions on patterns, numbers, logic, spatial reasoning and memory, takes about 20 minutes and places your result on the standard IQ scale (mean 100, standard deviation 15). We built it to be challenging, open about how it works and honest about what an online test can and cannot tell you.
What IQtonics is
IQtonics is a reasoning test you can take at home on a phone, tablet or computer, plus practice tests and puzzles for people who enjoy this kind of thinking. The questions are made for this site: a few are hand-written and the rest come from puzzle generators we built, and every generated question passes an independent check for a single correct answer before it is used. The test works on any device, and your progress is saved as you go, so an accidental refresh doesn't lose your answers. Everything runs at iqtonics.com, and you can reach the team at support@iqtonics.com.
What you can do without paying
You can answer all 40 questions without creating an account or paying anything. When you finish, you enter your email address to save your answers. Our IQ scale guide, the page for each IQ score, the percentile calculator and the blog are open to everyone.
What membership includes
Your IQ score and full report unlock with a trial membership that renews until you cancel; the pricing page shows the amounts. Membership includes your exact IQ score and percentile, a five-area cognitive profile with a bell curve, a downloadable certificate with a verification code, six targeted practice tests, training courses with 100 explained questions per area, thousands of brain-training puzzles, progress tracking and the option to retake the IQ test anytime. You can cancel in one click in your account settings and keep access until the end of the period you paid for. If you don't cancel before the trial ends, the membership renews automatically at the regular price.
Honest scoring
We publish exactly how your score is calculated, including what we do not have yet: there is no norming sample and no published reliability or validity data for this test. Your percentile is your position on the standard IQ curve, not a ranking against other users. Harder questions are worth more points, and finishing quickly can add a small bonus of at most 3 points, which only applies if you earned at least half of the points. For a step-by-step explanation of how the questions are made and how scores are calculated, with a worked example, read our methodology page.
Privacy
We do not sell your personal data or share it for targeted advertising. Analytics cookies are used only if you accept them; otherwise we measure visits without cookies. Payments are processed by Stripe, and we never see or store your full card number. You can download or delete your data in your account settings at any time.
Who it is for
IQtonics is for adults and teens aged 16 and over who are curious about their reasoning skills or want to practise for reasoning-style tests; you need to be 18 or over to buy a membership. It is a self-assessment, not a clinical or diagnostic test, and it should not be used for medical, educational placement or hiring decisions. If you are looking for an assessment for a child, a school psychologist or a licensed psychologist is the right place to start.
Ready to test your IQ?
40 questions, about 20 minutes. Find out where you stand on the IQ scale.
Take the IQ test now