As of the end of June 2020, this application will no longer be supported. It will be integrated into our new learning app, BIGBOX.
Download it here: https://apps.apple.com/kr/app/id1195456423
Class Booster
Learning English Online is fun and convenient!
Students can learn English using their mobile device, and teachers can check their progress report by emails.
service improvement
9Apps 4.9
