【實用遊戲app】Reflex Tester|最夯免費app-綠色工廠好玩App

Test and sharpen your reflexes with reflex tester. Tap in the square to start, and wait until the background color changes. As soon as it changes, tap the square again, the time between the color change and your tap is measured as your response time. Prepare to rush, be gently, don't break your touchscreen.