How to use
- 1
Click to start.
- 2
Wait for green, then click.
- 3
Repeat to get an average.
When to use it
Gaming
Compare reflexes with friends.
Focus check
Test when tired vs rested.
Classrooms
Run a quick contest.
Good to know
- Clicking early restarts the try.
- Space works too.
- Average is about 250 ms.
FAQ
Average reaction time?
About 200–300 ms.
Mobile?
Yes, tap the screen.
Saved?
No.