Lockademy: लॉक स्क्रीन कोरियाई

Every time you turn on your screen becomes a Korean lesson. Lockademy shows you a Korean word every time you turn on your phone—read, memorize, swipe. No need to open an app, no need to set aside time: the moments you already spend unlocking your phone become dozens of micro-lessons every day.

The sole purpose of this app is to learn Korean on your lock screen. Everything else—word browser, statistics, quizzes, and settings—exists solely to configure and track that lock screen learning experience.

How it works
• Turn on the screen—a Korean word card appears.
• Tap to see meanings, example sentences, synonyms, and antonyms.
• Select "I know this" or "Show again"—Smart Repetition takes care of the rest.
• Want to learn more? Tap Ask AI to understand the word in depth in Google AI Mode — nuances, cultural context, and related expressions (normal Google search where AI Mode isn't available).
• Unlock as usual. The card never blocks your PIN, pattern, or fingerprint.

Don't know how to read Hangul yet? Start from scratch.
Can't read Korean yet? The built-in 한글 course teaches you the alphabet itself: with every vowel and consonant mnemonic, step-by-step letter formation (ㅎ + ㅏ + ㄴ = 한), the last consonant, and the actual pronunciation rule — 합니다 is called "hamnida," and cards show you why. Select "I don't know how to read Hangul yet" when you first open the app, and it starts right there.

Smart Review That Never Forgets
Leitner Spaced Repetition brings back every word just before you're about to forget it: 1 hour → 1 day → 3 days → 7 days → 30 days. Words you learn get pushed back; those you miss come back quickly. Statistics on your streak and progress keep you motivated.

Quiz Mode
Turn the card over in a quiz and choose the correct meaning from four options. Instant feedback, hints, and a quiz-accuracy statistic to help you beat them. The quizzes in the 한글 course provide letter practice: assemble letters from parts and match each letter to its sound.

20,000 TOPIK Words
The vocabulary is selected from the National Korean Language Institute's learner word list and public TOPIK guidelines, covering every level (TOPIK 1–6) from beginner to advanced. Each word comes with Romanization, spelling, a natural example sentence, and synonyms/antonyms. Browse the entire word list, search, and favorite words to look them up again.

Customize it
• Word level: 한글 Alphabet Basics, Beginner, Intermediate, or All
• Display frequency: Every screen on, every hour, every 3 hours
• Daily new word limit keeps reviews manageable—and reaching it never ends your session
• Quiet hours—no cards at night
• Alarm-safe: Cards stay away when your alarm is ringing or about to ring
• Swipe up from the bottom to hide cards, so system gestures like Samsung Wallet work
• Two daily reminders that automatically skip when you've already read them
• ​​Card font size, Romanization toggle, meaning-always-show option

Private and completely offline
Everything works 100% offline. No account, no sign-up, and your study data never leaves your phone.

Note: The app only asks for the "Show on top of other apps" permission to display study cards when the screen is on. It never covers other apps and never compromises the security of your device.

Get started today—one word at a time, every time you look at your phone. 화이팅!