Privacy Policy
Last updated: January 24, 2026
1. Introduction
GrandMastersUniverse ("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 platform.
By using GrandMastersUniverse, you agree to the collection and use of information in accordance with this policy.
2. Information We Collect
2.1 Personal Information
We may collect personal information that you voluntarily provide, including:
- Name and contact information (email address, phone number)
- Account credentials (username, password)
- Profile information (date of birth, emergency contacts)
- Payment information (processed securely through Stripe)
- Information about minors (for students under 18, collected with parental consent)
2.2 School-Related Information
For martial arts school management, we collect:
- Student enrollment and attendance records
- Belt rank and promotion history
- Class schedules and registrations
- Event participation
- Membership and billing information
2.3 Automatically Collected Information
When you access our platform, we automatically collect:
- Device information (browser type, operating system)
- IP address and location data
- Usage data (pages visited, features used, time spent)
- Cookies and similar tracking technologies
3. How We Use Your Information
We use the collected information to:
- Provide, maintain, and improve our services
- Process transactions and send related information
- Send administrative notifications and updates
- Respond to inquiries and provide customer support
- Monitor and analyze usage patterns to improve user experience
- Detect, prevent, and address technical issues and security threats
- Comply with legal obligations
4. Information Sharing and Disclosure
We may share your information in the following circumstances:
4.1 With School Owners and Staff
Student information is shared with the martial arts school you are enrolled in, including school owners and authorized instructors.
4.2 With Service Providers
We share information with third-party service providers who assist us in operating our platform, including:
- Stripe (payment processing)
- Supabase (database and authentication)
- Email service providers (transactional emails)
- Analytics providers (usage analysis)
4.3 Legal Requirements
We may disclose information if required by law, court order, or government regulation, or if we believe disclosure is necessary to protect our rights, your safety, or the safety of others.
5. Data Security
We implement appropriate technical and organizational security measures to protect your personal information, including:
- Encryption of data in transit (TLS/SSL) and at rest
- Secure authentication mechanisms
- Regular security assessments and updates
- Access controls and employee training
- PCI-compliant payment processing through Stripe
However, no method of transmission over the Internet is 100% secure. While we strive to protect your information, we cannot guarantee absolute security.
6. Children's Privacy
Our platform serves martial arts schools that may have minor students. For users under 18:
- Accounts for minors are managed by their parent or legal guardian
- We collect only information necessary for school enrollment and management
- Parents can access, modify, or delete their child's information through their family account
- We do not knowingly collect personal information from children under 13 without parental consent
7. Your Rights and Choices
You have the right to:
- Access: Request a copy of the personal information we hold about you
- Correction: Request correction of inaccurate or incomplete information
- Deletion: Request deletion of your personal information, subject to legal retention requirements
- Portability: Request your data in a portable format
- Opt-out: Unsubscribe from marketing communications at any time
To exercise these rights, please contact us at privacy@grandmastersuniverse.com.
8. Cookies and Tracking
We use cookies and similar tracking technologies to:
- Maintain your session and remember your preferences
- Analyze usage patterns and improve our services
- Provide personalized experiences
You can control cookies through your browser settings. Disabling cookies may affect the functionality of our platform.
9. Data Retention
We retain your personal information for as long as necessary to:
- Provide our services to you
- Comply with legal obligations
- Resolve disputes and enforce our agreements
When you delete your account, we will delete or anonymize your personal information within 90 days, except where retention is required by law.
10. International Data Transfers
Your information may be transferred to and processed in countries other than your country of residence. We ensure appropriate safeguards are in place to protect your information in accordance with this Privacy Policy.
11. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of any material changes by posting the new policy on this page and updating the "Last updated" date. Your continued use of the platform after changes constitutes acceptance of the updated policy.
12. Contact Us
If you have questions or concerns about this Privacy Policy or our data practices, please contact us at: