AI-Powered Cognitive Assessment

Discover your cognitive potential with our scientifically-designed adaptive IQ test and train your brain with 300+ exercises

24,891 Tests Taken
300+ Exercises
7 Cognitive Domains
6 Languages
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Adaptive Testing

Questions adapt to your level in real-time using CAT methodology

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Detailed Results

Get your IQ score, percentile, and breakdown across 7 cognitive domains

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Brain Training

300+ exercises in patterns, memory, spatial, numbers, logic & speed

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Science-Based

Built on CHC theory — the gold standard in cognitive assessment

No signup required · Free forever · Privacy first · Works on any device

How It Works

Choose Your Test

Pick Express (15 questions, ~8 min), Standard (30 questions, ~20 min), or Full (50 questions, ~35 min).

Answer Adaptive Questions

Our CAT system adjusts difficulty in real-time — harder when correct, easier when wrong.

Get Instant Results

See your IQ score, percentile ranking, and breakdown across 7 cognitive domains immediately.

About Our Free IQ Test

IQgenio offers a free adaptive IQ test based on the Cattell-Horn-Carroll (CHC) Theory — the most widely accepted model of human intelligence. Using Computerized Adaptive Testing (CAT), our assessment dynamically adjusts question difficulty to your ability level, providing accurate results in fewer questions. The test measures 7 cognitive domains: Fluid Reasoning, Working Memory, Processing Speed, Visual-Spatial Processing, Crystallized Intelligence, Quantitative Reasoning, and Long-term Retrieval. No signup or email required — get your complete results instantly.

Learn more about our IQ Test →

Brain Training — 306 Exercises

Train your brain with 306 free exercises across 6 categories: Pattern Recognition, Memory, Spatial Reasoning, Number Skills, Logic & Deduction, and Processing Speed. Progress through 7 difficulty tiers from Beginner to Genius. Each exercise is designed to target specific cognitive abilities, helping you improve memory, sharpen logical thinking, and boost mental processing speed.

Explore

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Take IQ Test

Free adaptive IQ test with instant results across 7 cognitive domains.

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Brain Training

306 exercises in 6 categories from Beginner to Genius.

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IQ Score Chart

Understand IQ scores, percentiles, and classifications.

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Improve Your IQ

7 science-based methods to boost cognitive performance.

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Improve Memory

Exercises, games, and tips to strengthen your memory.

About & FAQ

Our methodology, CHC Theory, CAT testing, and answers to common questions.

Frequently Asked Questions

Is this IQ test really free?
Yes, completely free. No hidden costs, no premium version. You get full results including IQ score, percentile, and 7-domain breakdown. No signup or email required.
How accurate is an online IQ test?
Our test uses Computerized Adaptive Testing (CAT) based on CHC Theory — the gold standard in intelligence research. The Standard format achieves accuracy within ±5 IQ points. While not a clinical tool, it provides a reliable cognitive assessment.
Do brain games really work?
Research shows targeted cognitive training can improve specific mental abilities. Our 306 exercises across 6 categories are designed around cognitive science principles. Regular practice of 15-20 minutes daily leads to measurable improvements.
How many exercises are there?
306 total: 51 levels in each of 6 categories (Patterns, Memory, Spatial, Numbers, Logic, Speed). Each category has 7 difficulty tiers from Beginner to Genius.
Do I need to create an account?
No. Both the IQ test and brain training work without any signup. Your progress is saved locally in your browser. No personal data is collected.

Choose Your Test

Select the assessment that fits your time

Quick

Express

15 questions ~8 min
±10 IQ

Quick snapshot of your cognitive abilities

Detailed
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Full Assessment

50 questions ~30 min
±5 IQ

Maximum precision with all 7 cognitive domains

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Before We Start

Optional info helps us provide more accurate percentile comparison

Test Rules

  • Find a quiet place with no distractions
  • No calculator or external tools allowed
  • The test adapts to your answers — harder when correct
  • Don't overthink — your first instinct is usually right
🎯 Fluid Reasoning 1 / 30 ●●●○○

Analyzing Your Results

Processing responses...
Calculating domain scores...
Computing IQ estimate...
Generating your report...

Your Results

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IQ
This is an approximate cognitive assessment for entertainment and self-discovery purposes. It is not a clinical diagnostic tool.

Brain Training

0 🧠 IQ 100
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Daily Challenge 5 questions across all domains
0 day streak

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