Turn every time you unlock your phone into a Korean lesson. Lockademy shows you a Korean word every time you unlock your phone — read, think, swipe. No need to open an app, no need to set aside a specific time — the moments you spend unlocking your phone become dozens of mini lessons a day.
The sole purpose of this app is to help you learn Korean on your lock screen. Everything else — the word search engine, statistics, puzzles, and settings — are there to customize and track that lock screen learning experience.
How it works
• Unlock the screen — a Korean word card appears
• Tap to see the meaning, example sentences, synonyms, and antonyms
• Mark "Got it" or "Show me again" — the intelligent repetition system will handle the rest
• Want to know more? Tap Ask AI and search for that word on Google — for more information, Cultural content and related terms
• Unlock as usual. The card never blocks your PIN, pattern, or fingerprint
Can’t read Korean yet? Start from scratch
Can’t read Korean yet? The app’s 한글 course teaches you the alphabet itself—with memory aids for each vowel and consonant, step-by-step letter combinations (ㅎ + ㅏ + ㄴ = 한), consonant clusters (batchim), and authentic pronunciation rules — 합니다 is pronounced “hamnida,” and the cards show you why. When you first open the app, select “I don’t read Hangul yet,” and you’ll start right there.
Intelligent Repetition That Never Forgets
Leitner-based repetition presents each word exactly as it was written before you forgot it— 1 hour → 1 day → 3 days → 7 days → 30 days. The words you know are dropped, and the wrong words come back faster. Your continuous score and progress statistics keep you motivated.
Puzzle Mode
Flip the card into puzzle mode and choose the correct meaning from four options. Get instant feedback, hints, and a list of puzzles to solve. In the 한글 course, puzzles practice the letters—matching the letters from the parts, matching each letter with its sound.
TOPIK 20,000 Words
Vocabulary selected from the National Institute of Korean Language’s Learner’s Word List and common TOPIK guidelines, covering all levels (TOPIK 1–6) from basic to advanced. Each word includes a phonetic Latin script, a phonetic pronunciation, a natural example sentence, and synonyms/antonyms. Browse, search, and review the full vocabulary list. Bookmark words as favorites.
Customize it
• Word level: 한글 Accra Basic Lesson, Basic, Intermediate, or All
• Display frequency: Every screen on, every hour, every 3 hours
• Daily new word limit keeps your practice in check — reaching it never ends your session
• Quiet time — cards are not shown at night
• Safe and secure: The card stays away when your phone is ringing or about to ring
• Swipe up from the bottom to hide the card so that system gestures like Samsung Wallet can work
• Two daily reminders that automatically skip if you've already studied
• Card font size, phonetic Latin key, always show meaning options
Private and fully offline
Everything works 100% offline. No account, no registration, your study data never leaves your phone.
Note: This app only requests the "Show over other apps" permission to display the study cards when the screen is open. It never covers other apps, and it never compromises your device's security.
Get started today — one word at a time, every time you look at your phone. 화이팅!
Learn Korean from Hangul to TOPIK — lock screen, offline SRS.