For questions, bug reports, feedback, or feature requests, please contact us by email.

Support email: [email protected]

When reporting an issue, please include your device model, operating system version, app version, and a description of what happened.

Frequently Asked Questions

Q. How do I continue studying on another device? On the home screen, use "복습 기록 > 다른 이름으로 저장" (Study progress > Save As) to save a file to a location such as iCloud Drive or Google Drive. On the other device, open that file with "열기" (Open). If "자동 저장" (Auto-save) is on, your progress is saved to the file every time you study.

Q. I tapped the wrong button. Gently shake your phone on the study screen to undo your last answer.

Q. The blue word in the sentence looks different from the word I'm learning. English words change form depending on how they are used in a sentence, such as raise → raised, break → broke or ear → ears. The sentences keep these natural forms. The original form of the word is shown in the box below the translation after you tap "정답 보기" (Show answer). See "소개" (About) in the app for common changes.

Q. How do I hear the sentence again? The sentence is read aloud when you tap "정답 보기" (Show answer). Tap the card to play it again. If you hear nothing, check that your device volume is turned up.

Q. Why are the translations so literal? The Korean translations follow the English sentence as closely as possible, so you can see which English word matches which part of the translation.

Q. How do I start over from the beginning? Tap "복습 기록 > 새로 만들기" (Study progress > New) to clear your progress and start again. To keep your current progress, save it first with "다른 이름으로 저장" (Save As).

Q. When does a new day start? A new study day starts at midnight.