About IQgo

Free, accurate, and transparent cognitive assessment for everyone.

Our Mission

IQgo was built on a simple premise: professional-quality cognitive assessment should be accessible to everyone, not just those who can afford a clinical evaluation. We provide a free 35-question IQ test based on the Stanford-Binet methodology — the same psychometric principles used by licensed psychologists worldwide.

Over 70,000 people have taken the IQgo test since launch. We are committed to keeping the test free, accurate, and transparent about its methodology and limitations.

Our Methodology

Stanford-Binet Framework

Our test is designed around the five cognitive factors measured by the Stanford-Binet Intelligence Scales (5th edition): fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing, and working memory. We use a 35-question format optimized for digital delivery.

Scoring & Normalization

Scores are normalized to a standard distribution with a mean of 100 and standard deviation of 15 — the same scale used by the WAIS-IV and Stanford-Binet 5. Results include a percentile ranking and confidence interval. Our online test has an estimated reliability of r=0.75–0.85 (clinical tests achieve r=0.95).

Limitations & Transparency

Online IQ tests are good estimates, not clinical-grade assessments. Factors like test environment, fatigue, and familiarity with test formats can affect scores by ±5–10 points. For a definitive IQ measurement, we recommend consulting a licensed psychologist for a supervised clinical evaluation (WAIS-IV or Stanford-Binet 5).

The Team

Q

Quentin Durand

Founder & Product Lead

Entrepreneur and cognitive science enthusiast. Built IQgo to democratize access to cognitive assessment tools. Background in software development and product design.

Data & Privacy

Test answers are processed anonymously. We do not require registration, and your responses are not stored in association with your identity. Payment processing (for the optional full cognitive profile) is handled by Stripe — we never store card details on our servers.

Aggregate, anonymized test data may be used to improve test calibration and normalization. See our Privacy Policy for full details.

Contact

For questions, feedback, or press inquiries, reach us at hello@iqgo.app.

Ready to find out your IQ?

35 questions · Stanford-Binet methodology · Free · Instant results

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