※ This app is an app that contains the contents of the book.

★Level 1 required vocabulary carefully selected from SAT / MEP / Hakpyeong and high school 2 ~ 3 textbooks
In order to prepare for the SAT and exam at the same time, we have selected and recorded vocabulary that is frequently used and essential for reading comprehension.

★Etymology, polysynonyms & confused words can be learned
You can learn more in-depth words by configuring it so that you can learn essential etymology, polymorphic words & confusing words.

[Features of Wordmaster Advanced COMPLETE APP]
1. Word Card: Through Wordmaster's unique 'Yes, I Know' learning method, it eliminates the boredom of simple memorization and adds tension and fun. You can learn more about a single word, such as various meanings, examples, synonyms, antonyms, and related words.

2. Vocabulary: Word memorization book specialized for word master! According to the learning result of the word card, deep learning of words divided into ‘I don’t Know’ and ‘I Know’ is possible. You can see the word and memorize the meaning, or you can see the meaning and memorize the word.

3. Voice memorization: It is possible to listen to the correct pronunciation through the voice of a native speaker, as well as repeat listening learning and memorization. Also, customized listening learning is possible through the listening settings.

4. Match meaning/word match: Memorized words can be checked and reviewed through a word test.

5. Review reminder/random setting: You can do a review test at any time you want through a review notification the next day for wrong words in the meaning matching and word matching. You can also learn words in random order with random settings.

[Permission related]
The company does not separately collect and store personal information, and in order to provide services when installing the ETOOS APP, call status information value, camera function authority in cell phone, recording function authority in cell phone, photo, media, and file access authority in cell phone are required to.
If the user's device is less than Android 5.9, consent and withdrawal of optional access rights cannot be provided.