Terms

Updated September 30, 2026

These terms cover the Sumi website and explain use of the app. The app is licensed under Apple’s Standard End User License Agreement, linked below. Contact sumi@ohm.software for support.

Using Sumi

Sumi provides Japanese study material for personal learning. Use the app and website lawfully and do not interfere with their operation, misuse support, or redistribute protected material without permission. Your own notes remain yours.

Free access and Sumi Plus

The 46 basic hiragana, the 46 basic katakana and the first N5 kanji chapter are free. Sumi Plus provides access to every available kanji chapter from N5 to N1 and every advanced kana lesson, with their flashcards, quizzes and reviews, while an eligible subscription is active. U.S. pricing is US$4.99 monthly or US$29.99 yearly. Apple shows the actual local price, taxes, billing period and any offer before you confirm a purchase.

Billing, renewal and cancellation

Apple charges your Apple Account and manages purchases. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel them in your Apple Account’s subscription settings. Cancellation generally stops the next renewal; paid access continues for the remaining paid period, subject to Apple’s terms. Deleting the app or resetting data does not cancel billing. Restore Purchases uses the purchasing Apple Account. Refund requests are handled by Apple, subject to applicable law.

Study content and availability

Readings and translations are learning aids and may contain errors. Please report corrections. JLPT level labels are study groupings, not an official syllabus, endorsement or promise of exam success. The kanji and kana lists on this website are provided for personal study. Features may depend on your iOS or iPadOS version, installed voices, connectivity and Apple services. We may update content or features; any changes to paid access remain subject to applicable consumer rights and Apple’s terms.

Responsibility and your rights

Keep an export of learning data you want to preserve. The website is provided as available; no promise is made that it will always be uninterrupted or error-free. Nothing here excludes rights, warranties or remedies that cannot lawfully be excluded, or responsibility that applicable law does not allow us to limit. The app’s license and related rights are governed by Apple’s Standard EULA.

Changes and contact

Revised terms will be published on this page with an updated date. Changes do not remove rights you already have under applicable law. For questions about these terms, contact sumi@ohm.software.