JLPT Mastery adapts to your mistakes. It tracks the words you confuse, drills your weak spots, and uses AI to explain every error — so you stop repeating them.
Designed around official JLPT patterns · Built by bilingual engineers in Japan
What does 食べる mean?
“食べる (taberu) means "to eat," while 飲む (nomu) means "to drink." Both involve consuming, but 食べる is for solid food.”
Click an answer to try it yourself
What does 食べる mean?
“食べる (taberu) means "to eat," while 飲む (nomu) means "to drink." Both involve consuming, but 食べる is for solid food.”
Click an answer to try it yourself
How It Works
JLPT Mastery isn't a flashcard app with AI bolted on. It's an adaptive system built from the ground up.
The system tracks which words you confuse with each other — then builds targeted drills from your personal confusion patterns. This is our biggest differentiator.
Both involve consuming, but 食べる is for food, 飲む is for drinks
Similar sound: てんき vs でんき — different kanji, different meaning
Every session is built from YOUR mastery data. The engine prioritizes weak areas, spaces mastered material, and adjusts difficulty. No two sessions are the same.
When you answer wrong, AI explains WHY — not just what the right answer is. Grammar analysis, kanji breakdowns, and confusion pair explanations in context.
きのう 図書館 に ____ 。
Three problems with every other JLPT app — and how we solve them.
Other apps
Same flashcards for everyone, regardless of what you know.
JLPT Mastery
Adapts to YOUR weak spots. Each session is built from your mastery data — 4 Weak, 3 Improving, 1 Mastered, 1 Recheck.
Other apps
"70% correct" — one vague score. No idea which words you actually know.
JLPT Mastery
Per-word mastery tracking across 8,700+ words. Six states from New to Mastered. You see exactly where you stand.
Other apps
Got it wrong? Here's the answer. Now move on.
JLPT Mastery
Tracks which words you confuse with each other, then builds drills from your personal confusion patterns. 50K+ AI explanations tell you WHY.
Complete coverage from first hiragana to near-native reading.
Vocabulary, grammar, and kanji for all five JLPT levels. An adaptive engine that learns your weak spots and drills them until they stick.
Free to start · No credit card required · All 5 levels included