Privacy Policy

Last updated: 7/19/2025

1. Introduction

Mint Margin ("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 trading card valuation and transaction platform, including our website and mobile applications (collectively, the "Service").

By using our Service, you agree to the collection and use of information in accordance with this Privacy Policy. If you do not agree with the terms of this policy, please do not access the Service.

2. Information We Collect

2.1 Personal Information

When you register for an account, we collect:

  • Name and email address
  • Password (encrypted)
  • Team/shop name (if applicable)
  • Subscription and billing information (processed by Stripe)

2.2 Transaction Data

When you use our trading features, we collect:

  • Trade details (cards traded, quantities, values)
  • Trade preferences (buy rates, trade rates)
  • Trade history and patterns
  • Collection and wishlist data
  • Notes and comments on trades

2.3 Usage Information

We automatically collect:

  • Device information (type, operating system, browser)
  • IP address and approximate location
  • Activity logs and feature usage
  • Error reports and performance data

2.4 Card Data

We collect and store:

  • Card search queries
  • Favorited and saved cards
  • Custom card valuations

3. How We Use Your Information

We use the collected information to:

  • Provide and maintain our Service
  • Process trades and calculate valuations
  • Generate trade history and reports
  • Manage subscriptions and billing
  • Send transaction confirmations and receipts
  • Provide customer support
  • Improve our Service and develop new features
  • Build aggregated trade price databases
  • Detect and prevent fraud or abuse
  • Comply with legal obligations

4. Data Sharing and Disclosure

4.1 We share your information with:

  • Team Members: Other members of your team/shop can access shared trade data
  • Trade Partners: Basic trade information when sharing trade links
  • Service Providers: Including Stripe for payments, hosting providers, and analytics services
  • Aggregated Data: Anonymized trade data may be used for market analytics

4.2 We do NOT:

  • Sell your personal information to third parties
  • Share individual trade details without consent
  • Use your data for unrelated marketing

4.3 Legal Disclosure

We may disclose information if required by law, court order, or government request, or if necessary to protect our rights or the safety of users.

5. Data Security

We implement appropriate security measures including:

  • Encryption of passwords and sensitive data
  • Secure HTTPS connections
  • Regular security audits
  • Access controls and authentication
  • Secure data storage with regular backups

However, no method of transmission over the Internet is 100% secure, and we cannot guarantee absolute security.

6. Data Retention

We retain your information for as long as:

  • Your account is active
  • Necessary to provide our services
  • Required for legal or business purposes

Trade history is retained indefinitely for analytics purposes but can be anonymized upon request.

7. Your Rights and Choices

You have the right to:

  • Access: Request a copy of your personal data
  • Update: Correct inaccurate information
  • Delete: Request deletion of your account and personal data
  • Export: Download your trade history in CSV/PDF format
  • Opt-out: Unsubscribe from marketing communications
  • Restrict: Limit how we use your data

To exercise these rights, contact us at privacy@mintmargin.app.

8. Children's Privacy

Our Service is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected such information, please contact us immediately.

9. Third-Party Services

Our Service integrates with:

  • Stripe: For payment processing (see Stripe's privacy policy)
  • Pokemon TCG API: For card data and pricing
  • Future integrations: TCGPlayer, Pricecharting.com for real-time pricing

These services have their own privacy policies, and we encourage you to review them.

10. International Data Transfers

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

11. Changes to This Policy

We may update this Privacy Policy periodically. We will notify you of material changes by email or through the Service. Your continued use after changes constitutes acceptance of the updated policy.

12. Contact Us

For questions about this Privacy Policy or our practices, contact us at:

  • Email: privacy@mintmargin.app
  • Address: [Your Business Address]

13. California Privacy Rights

California residents have additional rights under the CCPA, including the right to know what personal information we collect, the right to delete personal information, and the right to opt-out of the sale of personal information (which we do not do).

14. European Privacy Rights

If you are in the European Economic Area (EEA), you have additional rights under GDPR, including the right to data portability and the right to lodge a complaint with a supervisory authority.