About this test
Letters will flash on screen. Tap the screen when you see any letter EXCEPT "X". If you see an "X", do NOT tap. Stay sharp the whole way through.
90 seconds of sustained focus.
Frequently asked questions
How long does this test take?
About 2 min — 10–15 questions, no signup.
Is this test free?
Yes, completely free. No signup, no email collection, no paywall — just take it.
How accurate is it?
A fun screening of sustained attention (SART). Not a clinical ADHD assessment — see a professional if attention concerns are interfering with life.
Can I share my result?
Yes. Take a screenshot of your result or send the test link to a friend. Results stay in your browser only.
Will my answers be saved?
No. Nothing is saved or sent anywhere — results live only in your current browser session and disappear when you close the tab.