Terms of Service

1. Overview

Yujin is an English reading application designed for children and their parents.

By using this service, you agree to these Terms of Service. If you do not agree, please do not use the service.

2. Accounts

2.1 Parent accounts

• Accounts must be created by a parent or guardian.
• Parents are responsible for all activity under their account.

2.2 Child use

• Children may use the service only under parental supervision.
• Parents manage all child profiles and settings.

3. Use of the service

You agree to use the service in a reasonable and respectful way.

You may not:

• Misuse or attempt to disrupt the service
• Attempt to access other users’ data
• Use the service for unlawful purposes

We may restrict or suspend access if misuse is detected.

4. Educational purpose

Yujin is designed as a learning support tool.

• We aim to provide a consistent and helpful experience.
• However, we do not guarantee specific learning outcomes.

Progress depends on regular use and individual effort.

5. Content and experience

All content provided in Yujin is for educational use.

We may:

• Update lessons and features
• Improve or modify content over time

We are not obligated to maintain specific content permanently.

6. Availability

We aim to keep the service available and stable.

However:

• Interruptions may occur due to maintenance, updates, or technical issues.
• We do not guarantee uninterrupted access at all times.

7. Data and privacy

Your use of the service is also governed by our Privacy Policy.

We handle data with care, especially for children, and collect only what is necessary to operate and improve the service.

8. Business and institutional use

If schools, tutoring centers, companies, or other organizations wish to use this service, we may ask them to contact us in advance depending on the purpose and scale of use.

At this stage, Yujin is primarily designed for regular household use. Large-scale organizational use, custom management features, invoicing arrangements, or separate agreements may require prior discussion.

9. Account termination

You may stop using the service at any time.

We may suspend or terminate accounts if:

• These terms are violated
• The service is misused

10. Limitation of liability

To the extent permitted by law:

• We are not responsible for indirect or incidental damages.
• We provide the service “as is” without guarantees of perfection.

This does not limit rights that cannot be excluded under applicable law.

11. Changes to these terms

We may update these Terms from time to time.

If changes are significant, we will notify users when appropriate. Continued use of the service means you accept the updated terms.

12. Contact

If you have questions regarding these Terms, please contact Service Support.