Reaction Tester is a simple Android app designed to test your reaction time. Instructions: Hold your phone with one hand and use a finger on your other to touch the 5 randomly spawning buttons as they appear. The time from the moment the button spawns to the moment you click on it is measured in milliseconds.
The app is totally secure for downloading. Guardanis designed Reaction Tester that falls into the Lifestyle category. On Google Play, the tool is rated 2.9 by its users.
This application has been downloaded and set up by over 1K users and the latest release is dated Mar 4, 2015. It's free of charge to get the installer of Reaction Tester, also, you can take a look at users' reviews on Droid Informer. The app runs on Android 1.6 and above.