Runword makes English grammar, vocabulary, and advertisements into learning contents and provides them to users. Learn and solve problems to earn rewards. * When you collect points, English words fit into your head. * When I eat, I come and go, and if I accumulate points before going to bed, I become close with English. * You can solve up to 20 problems per day and accumulate points. * When points are accumulated, you can purchase coins or goods. * Learn English with a money-making app. In