■ Collected 439 words included in Eiken 5th grade.■ It is said that repeated learning is the most effective way to memorize words. This vocabulary is a tool for efficient iterative learning.■ The memorized words will not be displayed and will be restored after a certain period of time. If you still remember it, it is a system that establishes your memory by repeating the review after a longer period of time.■ Since the frequency of displaying memorized words decreases, it is efficient because you can concentrate on learning words that you do not memorize automatically.■ There is also a mode to judge words that are easy to forget from the learning history and learn only the words that you are not good at.■ You can proceed with learning even in a short time of about 5 minutes.Ads will be displayed, but you can use it for free.