Reaction Time Test

How fast are your reflexes? Tap the moment the screen turns green and see your reaction time in milliseconds.

• 4 modes: visual, audio, choice reaction and moving target
• Average of 5 tries, best time and your rank (S–D)
• See your "top X%" for your age group
• False-start detection and touch-down timing for fair results
• Daily best, personal best, streaks and history chart
• Share your result and challenge friends

* Age-group guides are rough estimates. Screen and audio latency vary by device.