This app is equipped with multiple trainings that can train memory, reflexes, and instantaneous power. You can train in less than 1 minute per time, so its perfect for free time and killing time. Each problem measures the time to clear, so you can check how much your ability is after clearing. Lets try repeatedly and train your ability.Recorded contents・Start in order (Press in order from 1)・Color identification (press the same color)・Lets make it 10 (Total 10)・Change delivery (change calculation)and many more