Measure · train · climb the belts

Your reflexes, measured honestly.

8 tests for reaction time, click speed, typing, aim and memory. Median scoring, percentiles against your own kind of device, and a straight answer about how much of the number is you.

We time the frame, not the intent

Most sites start their clock when their code changes the colour. The browser does not show that change until the next frame is painted, one or two frames later. We start at the painted frame, which reads slower and is true.

The median, not the mean

One bad round should not define you. Reaction time is scored on the median of five attempts, which is the number you would score again tomorrow.

Your device, its own league

Touchscreens really are slower than mice. Rather than inventing an offset, we rank you against people using the same kind of input.

Nothing in the way

No banner, no cookie wall, no sign-up between you and the measurement. Results live in your browser and there is no account to make.

The full detail is in how we measure.