CALCOO app for iPhone and iPad

4.3 ( 2223 ratings )

Health & Fitness
Developer: actOpus

Free

Current version: 1.0, last update: 7 years ago
First release : 12 Sep 2013
App size: 578.34 Kb

CALCOO tests your reaction speed and concentration. After establishing a baseline you can use CALCOO on many occasions to find out if you perform better or worse.