コトリ takes you from kana to JLPT N5: the Kaishi 1.5k vocabulary deck, 40 grammar lessons, and spaced repetition that decides when you review — so you just show up. Works offline; progress saves on this device.
Recall the pink word's reading + meaning out loud, then grade honestly: もういちど = missed it, むずかしい = barely got it, いいね = got it, かんたん = instant. Each button shows when the card returns — new cards run 1min/10min steps before earning day intervals, and your grading history tunes each card's schedule. 10 new words/day plus due reviews. Trace tricky kanji below. Done early? おかわり deals more (they become tomorrow's reviews!).
Read, tap examples to hear them, pass the 3-question quiz to earn the ✓.
The chips are your recent words — hearing one in a video locks it in forever. Log your minutes.
かな = cheat sheet (tap to hear, ⚡ to quiz). レーダー = your N5 readiness — and the Backup card: export now and then, keep the text somewhere safe.
Never miss two days in a row. A bad day = 5 cards + one video. That counts.