Your scores stay on your device.
Last updated: August 15, 2026
Local results
R Test stores your recent reaction-time attempts and last-round comparison in your browser's local storage. We do not operate an account system or send those scores to a R Test server. Clearing this website's browser data removes the locally stored results.
Information you choose to share
If you download a CSV or result image, the file is created on your device. If you use a social sharing link, the destination platform receives the information you choose to post under that platform's own policies.
Analytics
We use Google Analytics to understand aggregated site use, such as page views, device and browser information, approximate location and how visitors arrive at the site. Google may use cookies or comparable identifiers to provide this service. We do not send your reaction-time scores to Google Analytics.
You can limit or block analytics cookies through your browser settings. Google also provides an Analytics opt-out browser add-on. Google's processing of analytics data is governed by Google's Privacy Policy.
Changes
We may update this policy when the site's data practices change. The latest version will always be available at this address.