About

This is a free suite of short cognitive tests with one rule: your result is always instant, always free, and always honest. No signup, no email gate, no “enter your phone number to see your IQ.”

We built it because most “brain test” sites are either scams or thin ad farms. The tests here are faithful, well-cited reimplementations of real cognitive-science paradigms, and every percentile is derived from a documented distribution — see the science.

Questions, corrections, or data requests? Contact us.