Privacy Policy

Last updated: March 2026

1. Introduction

Synchronium ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our web application and mobile applications.

2. Information We Collect

Account Information

When you create an account using Discord OAuth, we collect:

  • Your Discord username and email address
  • Your Discord profile picture
  • A unique identifier from Discord

Collection Data

We store information about your Yu-Gi-Oh! card collection, including:

  • Cards you add to your collection
  • Decks you create
  • Set codes and card information

Payment Information

Payment processing is handled by Stripe. We do not store your credit card information. Stripe may collect payment details in accordance with their privacy policy.

3. How We Use Your Information

We use your information to:

  • Provide and maintain our service
  • Sync your collection across devices
  • Process your subscription payments
  • Send important service updates
  • Respond to your support requests

4. Data Sharing

We do not sell your personal information. We may share data with:

  • Stripe for payment processing
  • Discord for authentication
  • Hosting providers to operate our service

5. Data Security

We implement appropriate security measures to protect your data, including encryption in transit and at rest. However, no method of transmission over the internet is 100% secure.

6. Your Rights

You have the right to:

  • Access your personal data
  • Request deletion of your account and data
  • Export your collection data
  • Withdraw consent at any time

7. Cookies

We use essential cookies for authentication and session management. These are necessary for the service to function properly.

8. Contact Us

If you have questions about this Privacy Policy, please contact us at our contact page.

Synchronium