價格：免費
檔案大小：33.8 MB
版本需求：需要 iOS 8.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Reaction Speed is the simplest and easiest reaction test available.
Tap as soon as the screen changes from red to green to measure your reaction time. There is only one button which makes it suitable for people of all ages.
支援平台：iPhone, iPad