HeyStudy: AI Vocabulary
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About this app
HeyStudy is officially here 🎉
Type in any topic and AI builds you 20 English words — pronunciation, meanings, and examples included.
· AI-generated custom vocabulary (Google Gemini)
· 100 free TOEIC 900+ starter words
· 6 study modes (flashcards · multiple choice · reverse · listening · spelling · test)
· Daily study reminders + check-in points
· Friend invite rewards
· No ads, a clean place to study
Look at 10 words a day — build your English the steady way.
Off-the-shelf vocabulary books always have limits. The English you need for your job, the expressions for your hobbies, the words for that concert you're going to… the ones you actually want to learn are never there. HeyStudy was built to fill that gap.
Just write one line — a topic. Something like "programming," "startup investing," "K-pop concerts," "camping," or "workplace English." Google Gemini puts together 20 key words from that field, complete with pronunciation, meanings, and example sentences. Pick from 5 difficulty levels, from beginner to advanced, and a vocabulary set you couldn't find anywhere else is ready every single day.
■ Built-in vocabulary
Sign up and 5 categories open automatically: IT, Business, Finance, Current Affairs, and Medical. 20 words each, 100 in total, at a TOEIC 900+ level.
■ 6 study modes
Flashcards (word ↔ meaning toggle), multiple choice, reverse mode (meaning → word), listening, spelling, and test. Meeting the same word in different ways makes it stick far longer.
■ Daily reminders + points
Get a daily nudge to study, earn points every day, and pick up a bonus for a 7-day streak. Invite a friend and you both get points.
■ Privacy, taken seriously
We collect none of it — no advertising ID, location, call logs, or contacts. Even for AI processing, no identifying information is sent; only the topic text you type. Your data is never used to train AI.
HeyStudy is built by a single developer. No ads, no nudging you to pay, no selling your data. Try building the habit of looking at 10 words a day.
Type in any topic and AI builds you 20 English words — pronunciation, meanings, and examples included.
· AI-generated custom vocabulary (Google Gemini)
· 100 free TOEIC 900+ starter words
· 6 study modes (flashcards · multiple choice · reverse · listening · spelling · test)
· Daily study reminders + check-in points
· Friend invite rewards
· No ads, a clean place to study
Look at 10 words a day — build your English the steady way.
Off-the-shelf vocabulary books always have limits. The English you need for your job, the expressions for your hobbies, the words for that concert you're going to… the ones you actually want to learn are never there. HeyStudy was built to fill that gap.
Just write one line — a topic. Something like "programming," "startup investing," "K-pop concerts," "camping," or "workplace English." Google Gemini puts together 20 key words from that field, complete with pronunciation, meanings, and example sentences. Pick from 5 difficulty levels, from beginner to advanced, and a vocabulary set you couldn't find anywhere else is ready every single day.
■ Built-in vocabulary
Sign up and 5 categories open automatically: IT, Business, Finance, Current Affairs, and Medical. 20 words each, 100 in total, at a TOEIC 900+ level.
■ 6 study modes
Flashcards (word ↔ meaning toggle), multiple choice, reverse mode (meaning → word), listening, spelling, and test. Meeting the same word in different ways makes it stick far longer.
■ Daily reminders + points
Get a daily nudge to study, earn points every day, and pick up a bonus for a 7-day streak. Invite a friend and you both get points.
■ Privacy, taken seriously
We collect none of it — no advertising ID, location, call logs, or contacts. Even for AI processing, no identifying information is sent; only the topic text you type. Your data is never used to train AI.
HeyStudy is built by a single developer. No ads, no nudging you to pay, no selling your data. Try building the habit of looking at 10 words a day.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App activity, and App info and performance
Data is encrypted in transit
You can request that data be deleted
What’s new
v1.1.0 — Multi-language support
· 6 languages: English, Korean, Japanese, Chinese, Spanish, Portuguese
· Auto-detects your device language on first launch; switch anytime in Settings
· Word meanings & examples now shown in your language (English words stay English)
· AI generation uses your selected language too
· New app icon and various bug fixes
· 6 languages: English, Korean, Japanese, Chinese, Spanish, Portuguese
· Auto-detects your device language on first launch; switch anytime in Settings
· Word meanings & examples now shown in your language (English words stay English)
· AI generation uses your selected language too
· New app icon and various bug fixes
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About the developer
김민재
jyjy.9080@gmail.com
황새울로 196
분당구, 성남시, 경기도 13595
South Korea
