Kanji Master - Japanese Reading Quiz

1. Introduction

Welcome to Kanji Master ("we," "our," or "us"). We are committed to protecting your personal information and your right to privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Japanese reading quiz application.

2. Information We Collect

2.1 Information from Google Authentication

When you sign in using Google, we collect:

Your name
Email address
Profile picture URL
Google account ID (for authentication purposes)

2.2 Learning Data

As you use our service, we collect:

Quiz answers and scores
Progress through levels
Response times (for Premium users)
Learning statistics and performance metrics

2.3 Payment Information

For Premium subscriptions, payment processing is handled by Stripe. We do not store your credit card information directly. Stripe's privacy policy governs the handling of your payment data.

3. How We Use Your Information

We use the information we collect to:

Provide and maintain our service
Track your learning progress across devices
Personalize your learning experience
Process Premium subscription payments
Generate aggregate statistics and rankings (for Premium users)
Improve our quiz content and user experience
Communicate with you about service updates

4. Information Sharing

We do not sell your personal information. We may share your information in the following circumstances:

Service Providers: We use Supabase for authentication and data storage, and Stripe for payment processing.
Rankings: If you participate in rankings (Premium feature), your username and scores may be visible to other users.
Legal Requirements: We may disclose information if required by law or to protect our rights.

5. Data Security

We implement appropriate technical and organizational security measures to protect your personal information. This includes encryption of data in transit and at rest, secure authentication protocols, and regular security assessments. However, no method of transmission over the Internet is 100% secure, and we cannot guarantee absolute security.

6. Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. If you delete your account, we will delete your personal information within 30 days, except where we are required to retain it for legal purposes.

7. Cookies and Tracking

We use essential cookies to maintain your session and authentication state. We do not use third-party tracking cookies for advertising purposes.

8. Your Rights

Depending on your location, you may have the following rights:

Access your personal data
Correct inaccurate data
Delete your account and associated data
Export your data
Withdraw consent

9. Children's Privacy

Our service is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If you are a parent or guardian and believe your child has provided us with personal information, please contact us.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

11. Contact Us

If you have any questions about this Privacy Policy, please contact us at:

Email: info@araac.co.jp