Terms of Service

Last Updated: March 8, 2026

1. Acceptance of Terms

By downloading, accessing, or using the Kanji Tree mobile application ("App"), you agree to be bound by these Terms of Service. If you disagree with any part of these terms, you may not access the service.

2. Description of Service

Kanji Tree is a mobile application providing kanji learning tools, interactive dictionaries (Codex), and stroke order guides based on our custom proprietary rendering engine and goal-sentence learning methodology.

3. Intellectual Property

All original content, features, and functionality within Kanji Tree—including but not limited to the codebase, custom stroke order rendering engine implementations, user interface designs, and learning logic—are the exclusive property of Kanji Tree and its creators.

Note on Open Source Data: Kanji Tree may utilize data from open-source projects (such as KanjiVG for stroke SVG data). This data remains under its respective original licenses.

4. User Responsibilities

You agree to use the App solely for your personal, non-commercial learning purposes. You agree not to:

Reverse engineer, decompile, or disassemble the App's source code or proprietary rendering engine.
Extract the pre-compiled SQLite database for use in competing products.
Reproduce, duplicate, copy, sell, or exploit any portion of the App without express written permission.

5. Disclaimer of Warranties

The App is provided on an "AS IS" and "AS AVAILABLE" basis. Kanji Tree makes no warranties, expressed or implied, regarding the accuracy, reliability, or completeness of the dictionary definitions, phonetics, or learning materials provided. Language is complex, and while we strive for accuracy, errors may occur.

Because Kanji Tree stores data primarily offline, we are not responsible for the loss of user progress data due to device failure, uninstallation, or corruption of local storage.

6. Limitation of Liability

In no event shall Kanji Tree, nor its developers, be liable for any indirect, incidental, special, consequential or punitive damages, including without limitation, loss of data, use, goodwill, or other intangible losses, resulting from your access to or use of or inability to access or use the App.

7. Contact Information

If you have any questions about these Terms, please contact us at support@kanjitree.com.