Study and review

The placement test

If you already know some of the language, the placement test marks those words so they are not taught to you again. It takes about five minutes and needs an account.

Website
Mobile app

Taking the test

It is offered in the first-run questions, and is in the account menu as Placement Test. It has three parts:

A few questions: whether you read hiragana and katakana, about how many kanji you know, and your JLPT level.
Rounds of words where you tick the ones you know. Each round adjusts to your answers. I know none of these ends it.
Your starting point: what will be marked Known and Familiar.

If you do not read hiragana yet, the word rounds are skipped: start with the kana course and take the test later.

Nothing is changed until you press Confirm. Retake starts over and Discard results throws them away.

Importing what you know

Instead of the test, Import a word list takes a list of words with an optional level each, or marks every word up to a level as Known. For words you already have, choose whether to only increase, only decrease, overwrite or skip them.

Reverting a placement

The placement page lists every confirmed run. Revert & Delete puts the levels it changed back. Words whose level you changed yourself since then keep your level.