— Comparison Hub
Core Brain vs other IQ tests
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Honest head-to-head comparisons against the major IQ tests online — what each measures, how they score, and when to pick which.
- Core Brain vs Mensa Test — Mensa's online workout is the most famous free IQ test — but it's specifically a Norwegian Mensa puzzle test, not a Wechsler-style cognitive assessment.
- Core Brain vs 123test.com — 123test offers a free quick IQ test and a paid Pro version.
- Core Brain vs RIOT IQ Test — RIOT IQ is one of the more rigorous online tests, used by the cognitive testing community.
- Core Brain vs CognitiveMetrics — CognitiveMetrics hosts a community of peer-developed IQ tests.
- Core Brain vs Free Online IQ Tests — Most "free IQ tests" online (free-iqtest.
Skip the comparison — try it yourself
Take Core Brain in 20 minutes and form your own opinion.
— Try one before you read on
Which number completes the sequence: 2, 6, 12, 20, 30, ?
Differences grow by 2 each time: +4, +6, +8, +10, +12 → 30+12=42.
That was 1 question. Take the full 20-min test →
The general rule
→Pause. Find out YOUR IQ before you keep reading.Real online IQ tests have three signatures:
- Disclosed methodology — IRT, CTT, or named statistical framework
- 95% confidence interval on the reported score (always)
- Reasonable test length (15-45 minutes minimum)
Anything that gives you a single number from a 5-minute test is entertainment, not measurement.
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