Japanese vocab
that sticks.
Ten words at a time, two minutes a day. Real spaced repetition with an AI example sentence for every word, so nothing is memorised in a vacuum. No decks to build, no ads to dodge.
No sign-up, no email. Demo progress lives in your browser for 7 days.
A personal, invite-only project, built in the open on GitHub.
Four ways to study
Same deck, four different demands on your memory. Pick whichever one you have the energy for today.
Flashcards
Real spaced repetition, powered by FSRS, the same engine modern Anki runs on. Cards come back right as you're about to forget them.
Quiz
Fast multiple-choice rounds for when you want momentum, not a marathon. Wrong answers get a shrug, not a lecture.
Exam
JLPT-style 漢字の読み方 and 漢字の書き方 sections, with distractors picked to be genuinely confusable. A benchmark, not a grind.
Grammar
220 N3 grammar points on their own review schedule, so patterns and vocabulary never compete for the same session.
Every word arrives in a sentence
A word on its own is a translation to memorise. A word in a sentence is grammar, register, and collocation you absorb for free. Every one of the 8,100+ words has an example sentence pitched to its own JLPT level, written once by Claude and cached, so it is identical every time you see it and costs nothing to show again.
約束
やくそく
a promise; an appointment
明日の約束を忘れないでください。
Please don't forget tomorrow's appointment.
How it works
Pick a level
One tap, N5 to N1. Everything (cards, quizzes, distractors) scopes to it, and you can switch whenever you like.
Study for two minutes
Ten new words a day, plus whatever is due. The home screen tells you what's waiting, so there is nothing to configure.
Let FSRS do the rest
Each answer reschedules the card for the moment you're about to forget it. Remember it easily, and you won't see it for months.
The bit in between
Anki is incredibly powerful, and incredibly fiddly: decks, note types, add-ons, sync configs. Duolingo is fun until the ads, and it has no real JLPT track anyway. Bayana lives in the gap. Open it, and study. That's the whole pitch.
始めましょう · give it two minutes
The demo is the real app, with the full deck. Nothing to install, nothing to fill in.