Learning materials and operator
Find out how the materials are prepared, what has been checked, how to report errors and who operates the app.
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How materials are prepared and checked
We create vocabulary, example sentences and practice questions with reference to official guidance. Readings and meanings or explanations in five languages support learners of Japanese.
Automated development tests check content counts, data format and language coverage. We also review content and translations, but a full review by subject experts and native speakers of every language has not been completed.
These are practice materials created for this app, not official test questions.
The date above is when this information page was updated. It is not the date of an expert review of all materials. Each field guide links to official information.
Report an error
If you notice a possible error in a word or explanation, please use the contact form. Include the page URL, your selected language and the word or question so we can check it.
Contact usOperator
株式会社オリジネーター
Originator Co., Ltd.
〒151-0051 東京都渋谷区千駄ヶ谷4-19-12 monparte北参道6Ｆ
Representative: 勝山 純一
Official company profile