Terms and Conditions

Do not rely on these for anything critical

These are browser timers. A phone that sleeps, a tab that is closed, a device that runs out
of battery, or a browser that suspends the page will all stop the alarm from sounding. Do not
use this site for medication timing, an exam, a medical procedure, or anything else where a
missed alarm has a real consequence. Use a dedicated device or app built for that.

The tests are not assessments

The reaction time shown includes your screen, input device and browser, and varies with all
of them. It is not a cognitive, neurological or fitness test and means nothing clinically. If
you are concerned about your reaction times or coordination, speak to a doctor rather than a
web page.

The written content

The explanations are ours. Quote them with a link; do not republish pages wholesale.

No warranty

Everything here is provided as is, without any guarantee of accuracy or availability.

Changes

These terms may be updated. Continued use after a change means the updated terms apply.