Privacy Policy
Last updated: November 10, 2026
Your data stays on your device
Every calculation runs in your web browser. The numbers you type or paste are never sent to us or stored on any server.
What we collect
We may use privacy-friendly, cookie-free traffic statistics (such as total page views) to see which calculators are used. If advertising is added in the future, this policy will be updated first, and you will be asked for consent where the law requires it.
Our hosting provider, Cloudflare, processes standard technical information (such as IP addresses) to deliver the site securely. See Cloudflare's privacy policy for details.
Fonts
Text fonts are loaded from Google Fonts, which receives your IP address when the fonts are downloaded.
Questions
If you have questions about this policy, contact the site owner through the instructor who shared this site with you, or through the contact information on the About page.