Privacy policy
Learn what Trusty Calculator collects, why it is used, and when third-party services load.
How this applies
Core calculators work without an account. Detailed feedback stores calculator and content versions, locale, category, optional message, status, and time for up to 180 days. We do not ask for calculation inputs, results, identity, or a full page URL. Cloudflare provides hosting and security. In permitted regions only, Google Analytics, cookie-free Ahrefs Web Analytics, and Adsterra may load; Ahrefs does not require personal information, and all three remain off in the EEA, United Kingdom, Switzerland, Tor, or when the region is unknown.
Questions and corrections
Contact support@yunfanlabs.com. Include the calculator name and a clear description, but do not send sensitive personal information or confidential project data.