Master Japanese, One Sentence at a Time
Every sentence you see has exactly one new word. You always understand what you're reading — and your vocabulary grows with every session.
How It Works
Smart Sentences
Each sentence contains exactly one word you haven't seen before. The rest? Words you already know. You learn in context, not from flashcard lists.
Spaced Repetition
Words you know well appear less often. Words you're still learning come back at the right time. Your daily study time actually decreases as you improve.
Zero Configuration
No decks to build. No settings to tweak. The app picks the right sentence, the right word, at the right time — so you can focus on learning.
Example
彼女は毎朝公園を散歩する。
She takes a walk in the park every morning.
Known wordsNew word