Reaction Speed Pro (org.softosaurus.reactionspeedpro) on Google Play
Another one Reaction Speed Tester. But now the precision plays the most important role.This allows you to measure your current condition and compare it with your previous results. For example, you can check out how the alcohol influence your reaction speed.Press the appearing red buttons. After 10 measures the outsiders (outside one Sigma) will be removed, and the average result appears.This is a Pro version. It includes the historic chart with all average result values. And no Ads of cause.