Privacy Policy

Introduction

Deddal ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our speedcubing learning platform.

Information We Collect

Personal Information

When you create an account, we collect:

• Email address
• Display name (optional)
• Profile information (optional)

Learning Data

To provide personalized learning experiences, we collect:

• Algorithm practice history
• Quiz results and scores
• Progress and knowledge levels
• Case preferences and notes
• Review schedules and timestamps

Technical Information

We automatically collect:

• IP address
• Browser type and version
• Device information
• Usage statistics and analytics

How We Use Your Information

We use your information to:

• Provide and maintain our service
• Track your learning progress with spaced repetition algorithms
• Generate personalized quiz questions
• Send important service updates and notifications
• Improve our platform and develop new features
• Analyze usage patterns to enhance user experience
• Prevent fraud and ensure platform security

Data Storage and Security

Your data is stored securely using Supabase, which provides:

• Industry-standard encryption in transit and at rest
• Regular security audits and updates
• Secure authentication with password hashing
• Database backups and disaster recovery

While we implement reasonable security measures, no method of transmission over the internet is 100% secure. We cannot guarantee absolute security of your data.

Data Sharing and Disclosure

We do not sell your personal information. We may share your data only in these circumstances:

• Service Providers: With trusted third-party services that help us operate our platform (e.g., Supabase for database hosting, Vercel for application hosting)
• Legal Requirements: When required by law, court order, or government request
• Protection: To protect our rights, privacy, safety, or property, and that of our users
• Business Transfer: In connection with a merger, acquisition, or sale of assets

Your Rights

You have the right to:

• Access: Request a copy of your personal data
• Correction: Update or correct your information
• Deletion: Request deletion of your account and data
• Export: Download your learning progress data
• Opt-out: Unsubscribe from marketing communications

To exercise these rights, please contact us through your account settings or via email.

Cookies and Tracking

We use cookies and similar tracking technologies to:

• Maintain your login session
• Remember your preferences
• Analyze site usage and performance
• Improve user experience

You can control cookies through your browser settings, but some features may not function properly if cookies are disabled.

Children's Privacy

Our service is not directed to children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

International Users

Your information may be transferred to and processed in countries other than your own. By using our service, you consent to such transfers. We ensure appropriate safeguards are in place for international data transfers.

Changes to This Privacy 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. Significant changes will be communicated via email or prominent notice on our platform.

Contact Us

If you have questions about this Privacy Policy or our data practices, please contact us at:

Email: privacy@deddal.app
Website: https://deddal.app