Privacy Policy

Last updated: November 1, 2026.

Calculator inputs

The calculators included in this release run locally in your browser. The site does not require an account, and calculator inputs are not intentionally sent to our servers by the calculator scripts.

Hosting and server logs

As with most websites, the hosting provider may process technical information such as IP addresses, request times, and browser details in server logs for operation and security. The exact retention and handling depend on the hosting configuration.

Cookies, analytics, and advertising

This release does not intentionally include analytics trackers, advertising scripts, or third-party cookie integrations. If these services are introduced later, this policy must be updated before deployment.

External links

Some calculator pages contain links to external tutorials or workbook stores. Those destinations may apply their own privacy policies once links are configured.

Questions

See our contact page for the current contact arrangements.