HeyStudy

jyjy9080

About this app

✨ AI-Driven Personalized English Vocabulary Learning, HeyStudy

Simply enter the topic you want. The AI ​​will automatically generate 20 words for you.

From specialized vocabulary at the TOEIC 900+ level to everyday expressions, improve your English skills with a personalized vocabulary list just for you.

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🤔 Why HeyStudy?

There are many vocabulary apps on the market. However, they often lack vocabulary specific to the field you actually want to memorize.

"Where can I memorize English expressions for my field of work?"

"I need English to use when going to a K-pop concert, but there are no vocabulary books for that..."

"General English vocabulary books aren't helpful for studying medicine."

HeyStudy solves these problems.

Just enter a topic, and the AI ​​(Google Gemini) will generate 20 English words perfectly suited to that field, complete with phonetic transcriptions and Korean meanings. You can create your own personalized vocabulary list every day that you can't find in stores.

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🎯 Recommended for:

✓ Those who need English for fields not covered in commercial vocabulary books

✓ Those who want to memorize specialized English for their work or major

✓ Those aiming for TOEIC 900+ level vocabulary

✓ Those who want to study English consistently, a little bit every day

✓ Those who want to memorize words in a fun, game-like way

✓ Those who want a clean, ad-free learning environment

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🤖 Key Feature: AI Category Auto-generation

Simply enter your desired topic.

📌 Examples

- "Programming" → 20 English words every developer needs to know

- "Startup Investment" → Key vocabulary for IR/funding

- "Environmental Protection" → Specialized terminology for current affairs and the environment

- "K-pop Concert" → Expressions to use at the concert venue

- "Work Life" → Key business English expressions

- "Camping" → Vocabulary for outdoor activities

📌 Select 5 Difficulty Levels

Beginner / Intermediate Beginner / Intermediate / Advanced / Mixed

You can learn vocabulary perfectly suited to your level.

📌 AI Automatically Organizes

It generates the word + phonetic transcription (IPA) + Korean meaning all at once.

You can check the accurate pronunciation of each word in listening mode.

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📚 100 Words Right from the Start, All Free

5 system categories are unlocked immediately upon signing up.

All are composed of carefully selected vocabulary at the TOEIC 900+ level.

💻 IT/Computer (20 items)

Key vocabulary in the IT field, including programming, cloud computing, and cybersecurity

💼 Business (20 items)

Business expressions frequently used in management, marketing, and negotiation

📈 Finance/Investment (20 items)

Specialized terminology for financial markets, such as stocks, bonds, and funds

📰 Current Affairs/News (20 items)

Current affairs vocabulary for reading English newspaper articles

🩺 Medicine/Health (20 items)

Basic specialized terminology in the medical field

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🎮 Memorize in various ways with 6 learning modes

Even the same words are remembered longer when learned in different ways.

🃏 Flashcard Mode

Quick review by toggling English words → Korean meanings in both directions.

You can freely switch between front and back sides to study at your own pace.

🎯 Multiple Choice Mode

Select the correct meaning. Learn the precise meaning through trick questions with similar meanings.

🔄 Reverse Mode (Korean → English)

Look at the Korean meaning and try to recall the English word. Develop active recall skills beyond simple recognition.

🎧 Listening Mode

Listen to native speaker pronunciation and match the words. Helps improve listening skills.

✏️ Spelling Mode

Memorize the correct spelling of words by typing them out yourself. Core learning directly linked to English writing skills.

📝 Test Mode

Select the number of questions and check your learning results with a 4-option multiple-choice format. Identify weaknesses through scores and reviews of incorrect answers.

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🔥 Check in daily and earn points

Consistency is key to learning English.

We have added game elements to help you build a habit of studying every day.

✓ +10 points for your first study session every day

✓ +50 point bonus for attending for 7 consecutive days (Total +60)

✓ Bonus repeats every week on days 14, 21, 28...

✓ Friend invitation rewards (Inviter +200, Friend +100)

✓ Current consecutive attendance days + Best record displayed simultaneously

✓ Check study progress at a glance on the main screen

🏆 Try to break your own personal best record!

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🎁 Friend Invitation System

Upon signing up, your unique 6-digit alphanumeric invitation code is automatically issued.

If a friend signs up using your code, both of you receive points.

✓ User: +200 points

✓ Friend: +100 points

✓ Supports system sharing features such as KakaoTalk and messaging

✓ Google Easy Sign-ups can also enter the invitation code

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🔐 Strict Privacy Protection

We place the utmost importance on users' personal information.

✓ Supports Google Easy Sign-in

✓ HTTPS (TLS 1.3) encrypted communication

✓ Password one-way encrypted storage (bcrypt)

✓ Refresh Token SHA-256 hash protection

✓ No ad identifiers collected

✓ No location data collected

✓ No device information such as call logs or address book collected

🔄 Secure Account Deletion System

✓ Automatic recovery available within 30 days of deletion (Mistaken deletion protection)

✓ Permanent deletion daily by the automated system (GitHub Actions) after 30 days

✓ 100% automation with no manual processing

✓ Points received from friend invitations remain intact

🤖 AI Processing Transparency

✓ User data is never used for AI training

✓ Identification information (email, name) is not transmitted during AI processing

✓ Only category topic text is transmitted

✓ Complies with the "Framework Act on the Development of Artificial Intelligence and the Establishment of a Trust Foundation"

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📋 Summary of Key Features

✓ Automatic AI category creation (Google Gemini)

✓ 5 TOEIC 900+ System Categories (100 Words)

✓ 6 Learning Modes (Flashcards / Multiple Choice / Reverse / Listening / Spelling / Test)

✓ Create Your Own Word Sets + Folder Classification

✓ Daily Attendance + Consecutive Attendance Bonus

✓ Friend Invitation Reward System

✓ Easy Google Login

✓ Korean Interface

✓ No Ads

✓ Cloud Sync

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📌 System Requirements

- Android 9.0 (API 28) or higher

- Internet connection required (Cloud synchronization of learning progress)

- Approx. 19MB of storage space

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💬 Inquiries and Feedback

Please feel free to contact us at any time if you have any comments or inquiries while using the service.

Gemini) 📧 Email: [e-mail]

🌐 Privacy Policy: https://jyjy9080.github.io/heystudy-legal/

📜 Terms of Service: https://jyjy9080.github.io/heystudy-legal/terms.html

🗑️ Request Account Deletion: https://jyjy9080.github.io/heystudy-legal/delete.html

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🌱 A Sincere Learning App Created by a Sole Developer

HeyStudy is an app created with care by a single developer for English learners in Korea. Our goal is to provide a truly helpful English learning experience, rather than seeking ad revenue or aggressive payment inducements.

We hope this will be a small contribution to improving your English skills.

Start now. 10 words a day, 3,650 words in a year.

English proficiency is perfected through consistency. ✨

#EnglishWords #EnglishStudy #TOEIC #AIEnglish #EnglishLearning #EnglishVocabularyMemorization #TOEICVocabulary #EnglishStudyApp #VocabularyMemorization

What’s new

ko-KR HeyStudy 정식 출시 🎉

원하는 주제만 입력하면 AI가 영어 단어 20개를 발음·뜻·예문까지 만들어줍니다.

· AI 맞춤 단어장 생성 (Google Gemini)
· TOEIC 900+ 기본 단어장 100개 무료 제공
· 6가지 학습 모드 (플래시카드·4지선다·역방향·듣기·스펠링·테스트)
· 일일 학습 알림 + 매일 출석 포인트
· 친구 초대 보상
· 광고 없음, 깔끔한 학습 환경

매일 단어 10개씩, 꾸준함으로 영어 실력을 완성하세요.