영단어 마스터: 단어장, 영단어 암기, 일본어, 중국어

📖 A free vocabulary app to memorize English, Japanese, and Chinese all in one app

🚀 An English vocabulary memorization app with no sign-up or payment — Start learning in 5 seconds

📚 4,500 English words (Middle School 1st Year to TOEFL) + Japanese JLPT N5 & N4 vocabulary + Chinese HSK Levels 1–4

🧠 The Forgetting Curve Review (SRS) selects the words you will study today

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✨ Why English Vocabulary Master?

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🆓 100% Free · 0 Sign-up · 0 Payment

You can use all words and learning features right from the start. There is no paywall to lock down features, and email or social media integration is unnecessary, allowing you to start learning in just 5 seconds.

📵 100% Offline Learning

All word data is installed within the app, ensuring perfect functionality without an internet connection. Subways, airplanes, mountains, libraries—it guarantees a seamless learning flow anywhere.

🔊 Free Pronunciation (TTS) + Example Sentence Audio

You can listen to all words and example sentences with a single tap. Since it uses the Android system's built-in audio, playback is instant without the need for a separate download.

🔒 Learning History Stored Only on Your Phone

All progress is stored only on your phone and is not transmitted to external servers. Use it with peace of mind, without worrying about personal information exposure.

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🧠 Smart Review System (NEW)

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🔁 Forgetting Curve Review (SRS)

Words that you got wrong or found difficult are presented again just as you are about to forget them. Words you have memorized well are reviewed over increasing intervals: Today → Day 1 → Day 3 → Day 7 → Day 15 → Day 30 → Day 60 → Day 120. Words you answer correctly until the end are "Mastered" and removed from the review list. Since you only frequently see the words you find confusing, your review doesn't pile up endlessly.

📕 Incorrect Answer Note

You can gather only the words you got wrong in quizzes or are not yet familiar with separately for focused review.

⭐ Favorites · 🔎 Word Search

Save difficult words with a star, and search over 7,100 words across 3 languages ​​at once.

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📊 Tracks to Boost Learning Motivation (NEW)

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🔥 Consecutive Study Days (Streak) · Cumulative Study Time · XP Earned

🎯 Set Daily Word Goals + Display Progress

⏰ Daily Study Notifications — Reminders to ensure you don't forget at your desired time

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📖 4,500 Words by Level

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• Middle School Basics 1·2 (600 characters) — Core vocabulary for family, school, daily life, animals, occupations, and emotions

• High School Essentials 1·2·3 (1,200 characters) — Academic, abstract, scientific, and cultural vocabulary for school exams

• CSAT Completion 1·2 (1,000 characters) — High-difficulty Vocabulary Frequently Used in CSAT + Vocabulary Applications

• TOEIC Basic · Advanced (1,000 characters) — Business · Contract · Finance · IT · HR Vocabulary

• TOEFL (700 characters) — Academic · Natural Science · Humanities · Arts · Philosophy · Religion Vocabulary

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🌏 Japanese · Chinese Available! (NEW)

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You can switch immediately by tapping the language card on the home screen. Learning progress is displayed for each card, and pronunciation (TTS) is automatically played according to each language.

🇯🇵 Japanese JLPT N5·N4 (Approx. 1,400 words)

· Kanji notation + Furigana (Yomigana) + Korean meaning + Example sentences

· Step-by-step courses from Beginner (N5) to Intermediate (N4)

🇨🇳 Chinese HSK Levels 1–4 (Approx. 1,200 words)

· Simplified characters + Pinyin (tone notation) + Korean meaning + Example sentences

· Level-specific courses from HSK Level 1 to Level 4

All learning features, such as flashcards, multiple-choice quizzes, forgetting curve reviews, favorites, and search, are available for both Japanese and Chinese.

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🃏 Learning Method — Page Turning + Quiz

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🎴 Page Turning Flashcards

· Swipe left or right like turning pages to move to the next/previous word

· Tap the page to reveal hidden meanings and example sentences

· Mark memorized words with a 'Memorized' stamp

· Instantly play American pronunciation with the pronunciation button

✅ Four Quiz Types

· Word → Meaning / Meaning → Word / Listen and Choose / Spell

· Questions are asked in different directions to prevent memorization in only one direction

· Immediate correct/incorrect feedback + score visualization

· Incorrect words are automatically added to the review list and error notes

📈 Progress Management

· Automatically display progress by level

· Automatically save last study position — continue learning from where you left off on the next launch

· Home screen widget — Consecutive study days and today Check the number of words to review without opening the app

· Dark Mode — Choose between Follow System Settings / Light / Dark

· Backup & Restore Study Data — Keep your progress and review schedule intact even when changing devices

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🎯 Recommended for:

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· Middle school students who want to start learning English vocabulary without pressure

· High school students and test-takers preparing for school grades or the CSAT

· Office workers studying TOEIC for employment or promotion

· Those studying TOEFL while preparing for studying abroad or immigration

· Beginner and elementary Japanese learners preparing for the JLPT

· Beginner and elementary Chinese learners preparing for the HSK

· All language learners who want to utilize their commute time or spare moments

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💡 Effective Learning Tip

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Study just 10 words consistently every day — seeing them briefly and frequently is more effective than memorizing a lot at once. Try repeating the cycle of learning with flashcards, checking with quizzes, and solidifying with reviews. If you continue with consecutive study days, your vocabulary will have risen a level before you know it.

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📩 Inquiries & Feedback

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Feedback, feature suggestions, word addition requests, and error reports are always welcome.

[email protected]

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