Last updated: September 28, 2026
Regular calculation is processed in your browser. If you choose an AI extraction button on either calculator, the text you entered is sent to Cloudflare Workers AI for parsing.
Calculator input
For regular calculation, your entries and results remain in the open page on your device. We do not require an account or store your calculation history. The “Copy total” button uses your browser’s clipboard feature only when you select it. Closing or reloading the page clears your entries.
Optional AI parsing
If you click “Extract numbers with AI” on the sum calculator or “Extract subgroup data with AI” on the R chart calculator, the text currently in that input box is sent to our Cloudflare Worker and processed by Cloudflare Workers AI. The Worker returns proposed numbers or subgroup data for you to review before applying. We do not intentionally store the text or extracted values. Do not submit sensitive information through this optional feature. Cloudflare may process the request under its privacy policy. If the daily AI allowance is exhausted, the AI feature may be unavailable while regular calculation continues to work.
Website visits
Like other websites, the hosting and security services that deliver this site may process technical information needed to serve pages and protect the service. This may include your IP address, request time, browser details, and requested page. When this site is hosted by Cloudflare, Cloudflare may process that information under its own privacy policy. This information is separate from the numbers you enter into the calculator.
Cookies and analytics
We use Google Analytics 4 to understand how people use the site. Google may receive page views, referral information, browser and device details, and interactions with the site. Its tag may set first-party cookies, including _ga and _ga_*, to distinguish visits. We do not send the numbers you enter as custom analytics events. Learn more in Google’s Privacy Policy. You can manage or block cookies in your browser settings.
Third-party badge and links
The home page displays a badge image hosted by Findly.tools. Loading that image sends a request from your browser to Findly.tools, which may receive standard request information such as your IP address and browser details. If you follow the badge link, Findly.tools handles that visit under its own privacy practices. Other external links are governed by their operators’ policies.
Changes to this policy
We may update this page as the site evolves. The date above shows when it was last revised. Please review it when you return if you want to know the current practices.
Questions
For privacy questions, write to yimin.space.fe@gmail.com.