Privacy Policy

This Privacy Policy explains what information Discrete Math Calculator ("the Site", "we", "us") collects, how it is used, and the choices available to you. By using this Site, you agree to the collection and use of information as described here.

Information We Collect Directly

• Account information: if you register, we store your username and a securely hashed (never plaintext) version of your password. We never store or have access to your actual password.
• Usage data you generate: quiz scores, quiz history, and leaderboard entries you submit while using the Site's features.

Cookies and Similar Technologies

We use cookies for two purposes:

• Essential cookies: a session cookie that keeps you logged in. The Site cannot function (login, admin access) without this.
• Advertising and analytics cookies: if enabled on this deployment, we use Google AdSense to display ads and Google Analytics to understand how the Site is used. These Google services may set cookies, use web beacons, IP addresses, or similar identifiers on your browser. Google and its partners may use this information to serve ads based on your prior visits to this Site and other sites on the internet.

Your Choices About Advertising Cookies

You can control or opt out of personalized advertising:

• Use the cookie consent banner shown on your first visit to accept or decline personalized ads. If you decline, you may still see ads, but they will not be based on your browsing history.
• Visit Google Ads Settings to control personalized advertising across all sites that use Google ad services.
• Learn more about how Google uses information from sites that use its services at How Google uses data when you use our partners' sites or apps.
• Visit www.aboutads.info for a way to opt out of many third-party ad networks at once.

Children's Privacy

This Site is not directed at children under 13, and we do not knowingly collect personal information from children under 13. We do not use Google's advertising or analytics services to target ads based on the activity of any user we know to be under 13. If you believe a child under 13 has provided us with personal information, please contact us so we can remove it.

Data Sharing

We do not sell your personal information. We share data only with the service providers necessary to operate the Site: our hosting provider, our database provider, and (where enabled) Google, for advertising (AdSense) and analytics (Google Analytics) purposes as described above.

Data Security

Passwords are hashed using industry-standard salted hashing and are never stored or transmitted in plain text. Administrative access is restricted to a single account controlled via server-side configuration, separate from regular user accounts.

Your Rights

Depending on your location, you may have rights to access, correct, or delete your personal information, and to object to or restrict certain processing. To exercise these rights, contact us using the details below.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes take effect when posted on this page, with the "Last updated" date above revised accordingly.

Contact Us

If you have questions about this Privacy Policy, please contact us at support@example.com.