игра Focus Booster App - IQ Tests and Brain Analyses
Самый увлекательный способ повысить свою концентрацию
Here comes the Focus Booster App, which can not only amaze and entertain you through its features, but also increase your concentration power and focus level.
Focus Booster through its various levels from low to high, tests your focusing power and even gives you the accurate results. After which you can improve your concentration by beating your scores.