CognitiveMetricsReviews of cognitivemetrics.com

Great customer support, fulfilled my request to revert my tests to their original scores.

Very insightful and intruiging.

Fun IQ tests that measure different abilities. Your scores may vary for all kinds of different reasons, but it's an interesting way of considering where your strengths may be and gives you a fairly robust ballpark estimate on an overall level of your IQ. I've only done CORE which is free, but I very much enjoyed it and highly recommend for those who are curious

I don't care how good or impressive their tests are. You will NOT get any results - even a rudimentary score, unless you front up a fee. This is not obvious from their initial blurb. So if you are casual visitor doing a 30 minute test, I rate it a 'waste of time' scam.

Better than your standard online IQ test. Having multiple tests for different categories is nice.

A very challenging free IQ test without payment scam

Offer a wide range of tests and several full scale ones. Even the one which are not fully free let you see your IQ (you just don't get the full explanations but you have the figure at least)

Great website. I enjoy the test, and I like how serious and dedicated they are to delivering the most robust and well researched tests.