Last updated July 10, 2026
Privacy Policy
ReactionTimeTest.app is designed to work without an account. This page explains the limited information used when you visit the site and complete a test.
Your Test Scores
Your best reaction score is stored in your browser using local storage. It remains on your device and is used to show your personal best on future visits. The site does not currently send that score to an application database or use it to create a public leaderboard.
You can remove the saved score by clearing site data for reactiontimetest.app in your browser settings. Using a private browsing window may prevent the score from persisting after the window is closed.
Site Analytics
The site uses Vercel Web Analytics to understand basic site usage and performance. The analytics service may process technical information such as page views, browser type, device type and approximate location. This information is used to maintain and improve the site rather than to create a reaction-score profile.
Analytics practices can change when hosting or measurement settings change. This policy should be reviewed whenever a new analytics, advertising, account or database feature is added.
Accounts, Advertising and Payments
The site does not currently require user accounts, accept payments or display personalized advertising. If any of these features are introduced, this policy will be updated before the new data use is described as active.
External Links
Educational pages may link to third-party research or reference material. Those sites have their own privacy practices, and this policy does not control how an external site handles information.
Changes to This Policy
This policy may be revised when the site changes. The updated date at the top of the page will show when the latest revision was published.