Curtain English
Improve your English reading focus as you read each line of English text.
Curtain masking moves left to right — one line at a time —
hiding what you have already read and keeping your eyes moving forward.
Curtain masking
Curtain masking hides the English you already read as a cover moves left to right. Your eyes stay on unread text—less going back, more forward focus.
Comprehension quiz
A short quiz after every page checks your understanding. Then open a full-page translation in Korean, Japanese, Chinese, Spanish, French, or German.
Resume reading
Sign in to save your progress. The next time you open the app, you will continue exactly where you left off.
Study or Read only
Study: curtain masking, quiz, and translation when you want support. Read only: the same masking with no quiz or translation—practice reading English straight through.
Key words & vocabulary
Each page highlights important words with meanings in your language. Save the ones you want to review to your Wordbook, then study them anytime with flashcards.
Classic literature
Read classic English novels with Curtain English—1984 by George Orwell, The Great Gatsby by F. Scott Fitzgerald, and Pride and Prejudice by Jane Austen, plus more titles in the library.