Privacy Policy

This Privacy Policy describes how the Leibniz Calculus platform (“A modern, free platform for learning mathematics”, hereinafter referred to as “the Platform”, “we”, “us”) collects, uses, and protects personal data and user information.

Information Collection and Use

We collect only the minimum data necessary to ensure the stable operation of the Platform and to improve the educational experience. This data includes:

• Registration data: your username and email address, provided when creating an account to save your learning progress
• Technical data: your IP address, browser type, language preferences, and the date and time of access
• Usage data: information about completed topics, solved problems, test results, and your interactions with the user interface

The collected information is used exclusively to provide access to educational materials, personalize content, localize the interface, and provide technical support.

Cookies and Analytics

The Platform uses cookies to ensure the proper functioning of the service:

• Essential cookies: necessary for authorization, maintaining user sessions, and remembering your selected interface language
• Analytical cookies: used for the anonymous analysis of website traffic and user behavior in order to improve the navigation, structure, and quality of educational materials

You can disable or restrict the use of cookies in your browser settings. Please note that doing so may result in the improper functioning of certain features on the Platform.

Data Protection and Sharing

We implement the necessary organizational and technical measures to protect your personal data from unauthorized or accidental access, destruction, alteration, blocking, copying, or distribution. We do not sell or share personal data with third parties for marketing or commercial purposes. Information may only be shared:

• With authorized service providers (e.g., hosting providers) who maintain the Platform’s infrastructure and are obligated to adhere to strict privacy standards
• At the request of authorized public authorities, if explicitly required by applicable law

User Rights

You have the right to control your personal data. At any time, you may submit a request to:

• Access information about the scope and categories of your data being processed
• Correct inaccurate or outdated information
• Completely delete your account and its associated learning history

Contact Information

For any questions regarding this Privacy Policy or the processing of your data, you can contact us via email at: leibnizcalculus@gmail.com