The "Download Now" link directs you to the iTunes App Store, where you must continue the download process. You must have iTunes installed in order to open the link, and you must have an active iTunes account to download the application. This download may not be available in some countries.
WEAR HEADPHONES TO ENHANCE YOUR APP EXPERIENCE. Test your reaction time with this app. When the red circle appears on the screen touch it as fast as your can. Your reaction time will be recorded and shown. Try to improve each time and challenge your friends.