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Privacy Policy

v1.0.0 — Effective April 8, 2026

1. Introduction

TORAIZ Inc. ("we", "our", "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and protect your information when you use Fujisan.AI.

2. Information We Collect

2.1 Personal Information

  • Email address (required for account creation)
  • Name (optional)
  • Payment information (processed securely by Stripe)
  • JLPT target level and learning preferences

2.2 Learning Data

  • Progress and completion records
  • Test scores and assessment results
  • Study time and usage patterns

2.3 Technical Data

  • Device information (browser type, OS)
  • IP address and approximate location
  • Cookies and similar tracking technologies

3. How We Use Your Information

  • Provide and personalize the learning experience
  • Process payments and manage subscriptions
  • Send service-related communications
  • Improve our products and services
  • Prevent fraud and ensure security

4. Cookies

We use cookies for:

  • Essential: Authentication and security (required)
  • Analytics: Understanding how you use the Service (optional)
  • Performance: Improving load times and functionality (optional)

You can manage cookie preferences through our cookie banner.

5. Data Sharing

We do not sell your personal information. We may share data with:

  • Stripe: Payment processing
  • Firebase: Authentication and data storage
  • Analytics providers: Usage analysis (anonymized)

6. Data Retention

We retain your data while your account is active. After account deletion, we may retain certain data for up to 90 days for legal and operational purposes.

7. Your Rights (GDPR)

If you are in the European Economic Area, you have the right to access, correct, delete, restrict, or port your personal data, and to withdraw consent.

8. Your Rights (CCPA)

California residents have the right to know what personal information is collected, request deletion, and opt-out of the sale of personal information. We do not sell your personal information.

9. Children's Privacy

The Service is not intended for children under 13. We do not knowingly collect personal information from children under 13.

10. Security

We implement industry-standard security measures including encryption, access controls, and regular security audits.

11. Contact Us

For privacy-related inquiries: support@fujisan.ai

TORAIZ Inc. — Tokyo, Japan