20 Seconds - Test your reaction time app for iPhone and iPad
4.8 (
4368 ratings )
Health & Fitness
Games
Arcade
Sports
Developer: Jochen Heizmann
Free
Current version: 6.0, last update: 7 years agoFirst release : 08 Nov 2014
App size: 38.14 Mb
Test and improve your reaction today. You have 20 seconds to react as fast as possible. This is pure fun!