Privacy Policy

Duelio respects your privacy and is committed to protecting your personal data. This Privacy Policy explains how your information is collected, used, and protected when you use Duelio.

1. Who we are

Duelio is operated by an independent developer.

Contact email: duelio.contact@gmail.com

2. Data we collect

We may collect the following information:

• Email address (if provided by your login provider)
• Username or display name
• Profile picture
• Authentication identifiers (OAuth provider account ID)
• User-generated content (such as submitted images, votes, interactions)
• Technical data (IP address, browser type, device information) for security purposes

3. How data is collected

Data is collected when you:

• Sign in using Google or GitHub (OAuth authentication)
• Create an account using email and password
• Use the application features

We do not receive or store passwords from OAuth providers.

4. Purpose of data collection

Your data is used strictly for the following purposes:

• Account creation and authentication
• Providing core application functionality
• Security, fraud prevention, and abuse detection
• Responding to support requests

We do not sell, rent, or share your personal data for advertising or marketing purposes.

5. Data storage and security

Your data is stored on secure servers using industry-standard security practices.

Passwords (for credential-based accounts) are encrypted and never stored in plain text.

6. Third-party services

Duelio uses third-party services for authentication and infrastructure:

• Google OAuth
• GitHub OAuth
• Hosting and cloud infrastructure providers

These services may process data according to their own privacy policies.

7. Cookies and authentication

Duelio uses cookies and tokens strictly necessary for authentication and session management. We do not use tracking or advertising cookies.

8. Your rights

You have the right to:

• Access your personal data
• Request correction of inaccurate data
• Request deletion of your data

Requests can be made by contacting duelio.contact@gmail.com.

9. Data retention

Personal data is retained for as long as your account remains active or as necessary to provide the service. Data may be deleted upon request.

10. Changes to this policy

This Privacy Policy may be updated from time to time. Any changes will be published on this page.