Recall-first flashcards
See the Korean word and try to remember it. Tap to reveal the Japanese meaning and a bilingual example sentence — the recall-first flow that makes Anki effective.
Korean vocabulary, made to stick
Master Korean vocabulary with AI review
Anki-style flashcards built on the TOPIK I & II word lists, with an AI-driven spaced-repetition schedule so the words actually stay in your memory.
Coming soon to the App Store · Android in development
4,000+hand-curated words
TOPIK I·IIfull coverage
Buy onceno subscription
Offlineafter first launch
Everything you need to actually learn the words
4,000+ TOPIK words, structured
50 words per chapter, with the previous chapters automatically carried over so you keep reviewing as you advance. Homophones are tagged (1)/(2) to avoid confusion.
Premium
AI Review — spaced repetition
Your study history drives a 1 / 3 / 7 / 14 / 30 / 60-day schedule that resurfaces the words you're about to forget, right on time.
Weak-word tracking & streaks
Words you keep missing flow into a dedicated weak-word list, and a GitHub-style heatmap visualizes your study days and consecutive-day streaks.
How it works
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1
See the word
A Korean word appears on the card. Try to recall its meaning before revealing it.
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2
Reveal & self-check
Tap to reveal the Japanese meaning and a Korean–Japanese example sentence.
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3
Mark & repeat
Tap 分かる / 分からない. Words you miss come back at the optimal time.
Premium
One purchase unlocks everything — forever
No subscriptions, no recurring charges. The entitlement covers every device signed into the same Apple ID.
- Ad-free studying
- AI Review (spaced repetition)
- Full weak-word list + dedicated review session
- Pronunciation playback (on-device TTS)
- Dark mode
- Auto-rotation (landscape support)
Frequently asked questions
Is it free?
Yes. The core study experience is free, supported by ads. A one-time Premium purchase removes ads and unlocks AI Review, pronunciation, dark mode, and more.
Which TOPIK levels are covered?
Both TOPIK I and TOPIK II — over 4,000 hand-curated words.
Does it work offline?
Yes. After the first launch everything runs on-device, and your progress never leaves your phone.
Is it a subscription?
No. Premium is a single one-time purchase that works on every device signed into the same Apple ID.
Is there an Android version?
Android is in development. iOS launches first.
What language is the app in?
The app UI is Japanese, designed for Japanese speakers learning Korean. Vocabulary and example sentences are Korean and Japanese.
Your data stays on your device
Learning progress is stored locally and never sent to a server. The only third-party data flow is Google AdMob ads on the free tier, with the iOS App Tracking Transparency prompt respected.
Read the Privacy Policy →