Privacy Policy
This page describes information used by Block Circle Plans. Last updated October 28, 2026.
Your circle plans and saved progress
Circle and oval calculations, diagrams, and exports run in your browser. The current settings, current row, and completed rows can be saved in local storage on that browser. Use “Clear saved progress” in the tool to remove that saved record. Browser settings or clearing site data can also remove it.
Share links use a URL fragment to carry the shape, dimensions, and outline. They do not contain completed rows. The tool does not upload your grid or row progress to a calculation service.
Site operation and private administration
When the website is served online, the hosting service can process request information such as IP addresses, browser headers, and requested paths to deliver pages and handle security. Private administration uses session cookies when its sign-in is enabled. There is no visitor registration.
Analytics and advertising
Analytics cookies are not currently enabled. No advertising is currently displayed, and advertising cookies are not currently used.
Contact
If you email support, the message and contact information you provide are used to respond to that request. Do not include sensitive information that is not needed for support.