Have you ever wondered how good your reaction time is? Test your friends and family and see who reacts the fastest to red, yellow, and green light.
- Download the app on 2 iPhones or iPads and connect when on the same Wi-Fi network.
- Place on device 7 or 10 feet away and standing up so that you can see it
- Use the other device to "react" when a color appears on the display device.
- Have other people try it and compare and share the results!
Ratings and ReviewsSee All
I was able to use this app for my stem fair project and I couldn’t have done it without this app.
With Family Sharing set up, up to six family members can use this app.