Compare online IQ tests

Ranking 2026

Updated: 2026-08-12 · Price comparisons

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Quick answer: CertifiedIQ stands out for instant detailed reports; 123test and Mensa are classic alternatives. We compare 7 sites with pros, cons and direct links.

  1. CertifiedIQ

    Professional online IQ test with instant scoring and detailed cognitive report.

    ✓ Pros
    • Instant results
    • Report by cognitive areas
    • Excellent mobile design
    ✗ Cons
    • Full report is paid
    • Interface mainly in English
    Visit →

  2. 123test

    Classic free 60-question IQ test with immediate score calculation.

    ✓ Pros
    • Standard 60 questions
    • Spanish version
    • No registration
    ✗ Cons
    • Intrusive ads
    • Outdated design
    Visit →

  3. IQ Test

    Popular intelligence test platform with multiple formats and fast results.

    ✓ Pros
    • Several test types
    • Quick to complete
    ✗ Cons
    • Less detailed results
    • Aggressive upsells
    Visit →

  4. Free IQTest

    Free IQ test focused on speed and visual logic questions.

    ✓ Pros
    • 100% free
    • Visual logic focus
    ✗ Cons
    • No certification
    • Limited analytical depth
    Visit →

  5. IQTest

    Cognitive test suite with percentile comparison against global population.

    ✓ Pros
    • Global percentile comparison
    • Multiple difficulty levels
    ✗ Cons
    • Paid PDF report
    • Registration required
    Visit →

  6. Mensa

    High-IQ society with official supervised test for Mensa membership in Spain.

    ✓ Pros
    • Prestige and validity
    • Supervised in-person test
    • Active community
    ✗ Cons
    • Not instant online
    • Membership fee
    Visit →

  7. CertifiedIQ

    Good option if you want to retake the test and track cognitive progress over time.

    ✓ Pros
    • Unlimited retakes
    • Score history
    • Multi-device access
    ✗ Cons
    • Does not replace official Mensa test
    • Advanced report is paid
    Visit →

External third-party links. Compara10 may use UTM tracking; always verify terms on the destination site.

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FAQ

How do we pick sites for the ranking?

We assess usability, free or fair pricing, report or service quality and recent user feedback. Order reflects general usefulness, not paid placement.

Are these affiliate links?

Some links include UTM parameters to measure traffic. Compara10 does not charge users; always verify terms on the destination site.

How often is this updated?

We review rankings at least once a year or when market conditions change materially.

How often is this ranking updated?

At least once a year or when market or service conditions change materially.

Can I suggest a new site?

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