1. Information We Collect
This website does not require you to create an account. The calculators on this website work in your browser and on our server only to show your result. We do not store your marks, dates of birth or calculation results in a database — this website has no database.
If you use the contact form, we receive the name, email address and message you type. That information is used only to reply to you. The contact form does not send email automatically unless the website owner configures an email address for it.
2. Cookies
This website uses a session cookie only when you open the contact form, to protect it against cross-site request forgery (CSRF). It does not use advertising or tracking cookies of its own.
3. Third-Party Services
This website contains no advertising code. If advertising is added in future, the advertising provider may use cookies as described in its own privacy policy, and this page will be updated.
4. Children's Privacy
These tools are meant for use by parents, guardians and students with a parent's or teacher's guidance. We do not knowingly collect personal information from children through the calculators.
5. Data Security
We take reasonable steps to protect information you send us, including input validation, output escaping and security headers. No method of transmission over the internet is completely secure, so please do not send sensitive documents through the contact form.
6. Changes to This Policy
We may update this policy from time to time. The updated version will be posted on this page.
7. Contact
If you have questions about this policy, please contact us through the Contact Us page.