Privacy Policy

Last Updated: December 4, 2025

Manda SENC operates Aaronsan. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our Japanese language learning platform.

1. Information We Collect

1.1 Personal Information

When you create an account, we collect:

• Email address
• Username
• Profile information (optional)
• Payment information (processed by Stripe, not stored by us)

1.2 Learning Data

We collect and store:

• Flashcard review history
• Progress and performance statistics
• Study streaks and achievements
• Favorite cards and custom collections

1.3 Usage Information

We automatically collect:

• Device information and browser type
• IP address and location data
• Pages visited and features used
• Time spent on platform

2. How We Use Your Information

We use collected information to:

• Provide and maintain our service
• Implement spaced repetition algorithms (SM-2)
• Display your progress and statistics
• Generate leaderboards and rankings
• Process payments and manage subscriptions
• Send important service updates
• Improve our platform and user experience

3. Information Sharing and Disclosure

3.1 Public Information

By default, the following information is publicly visible:

• Username and avatar
• Leaderboard rankings
• Study statistics (in Hall of Shame/Fame)

3.2 Privacy Plan Benefits

Privacy Plan subscribers can:

• Hide their profile from leaderboards
• Remove their data from Hall of Shame
• Control visibility of their statistics

3.3 Third-Party Services

We use the following third-party services:

• Stripe: Payment processing
• Supabase: Database and authentication

4. Data Security

We implement industry-standard security measures to protect your data:

• Encrypted data transmission (HTTPS/TLS)
• Secure password hashing
• Regular security audits
• Access controls and authentication

5. Data Retention

We retain your data as follows:

• Learning Progress: Stored permanently unless you request deletion
• Account Data: Retained until account deletion
• Payment Records: Kept for 7 years for tax compliance

6. Your Rights

You have the right to:

• Access your personal data
• Correct inaccurate information
• Request data deletion
• Export your learning data
• Opt out of marketing communications
• Control your privacy settings

7. Cookies and Tracking

We use cookies to:

• Maintain your login session
• Remember your preferences
• Analyze platform usage

You can control cookies through your browser settings.

8. Children's Privacy

Our service is not intended for users under 13 years of age. We do not knowingly collect personal information from children under 13.

9. International Data Transfers

Your data may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place to protect your information.

10. Changes to Privacy Policy

We may update this Privacy Policy periodically. We will notify you of significant changes via email or platform notification.

11. Contact Us

For privacy-related questions or to exercise your rights, contact us through our platform support.

12. Data Protection Officer

For GDPR-related inquiries, you can contact our Data Protection Officer through our support channels.