Privacy Policy

Last updated: November 1, 2026.

Calculator data

The current calculators run in your browser. Values entered in the fields are not uploaded to our server for calculation. Weekly CSV files are created locally on your device.

Hosting

The website is hosted on Cloudflare Pages. Our hosting and network providers may process technical request information, such as an IP address and browser metadata, according to their own policies.

Color theme preference

If you select Light, Dark, or Auto, your device stores that display preference in its browser local storage. We use this only to show your chosen appearance, not for tracking. You can clear it with your browser's site-data controls. Auto follows your device's color settings.

Advertising & cookies

At this testing stage, there are no Google AdSense, Amazon affiliate, account registration or analytics scripts installed. If advertising or analytics are added later, this policy and any needed visitor consent mechanisms will be updated before activation.

Copying results and downloading timesheets

When you choose Copy result, your browser's clipboard capability is used only for that action. CSV downloads are generated locally by your browser. Neither feature requires an account or uploads the calculator inputs to this website.

Email messages

If you contact us, our email provider processes your message and sender address so we can read and reply. Please avoid sending sensitive personal data.

Other websites

Links to other websites are governed by their own privacy notices.

Contact

Find the feedback address on our contact page.