Privacy

Updated 2026-10-31

• Your inputs stay on your device. All calculators run as JavaScript in your browser. When you use Copy link, your numbers are stored after the # in the address, which browsers never send to the server.
• No cookies, no ads, no third-party trackers.
• Basic visit counting. We count page views with our own cookie-free script: page path, referring site, screen width and browser language. A daily-rotating, one-way hash is used to tell visits apart; IP addresses are not stored in these counts. Standard web-server logs (IP address, time, requested URL, browser) are kept for security and troubleshooting.
• Links out. Template links go to Gumroad, which has its own privacy policy.
• Questions or deletion requests: tanlabs@mail.grokbot.com.