Privacy Policy
Last updated: 10 October 2026
What we collect
Calculator inputs (v1). Numbers you type into a calculator — salary, bodyweight, and similar — are saved only in your browser's local storage, under this site's domain. They are never transmitted to any server we operate, and we cannot see them. Clearing your browser data, using a different browser, or using private/incognito mode removes them.
Standard site analytics. Like most websites, we may use analytics tools (e.g. Google Analytics) to understand aggregate traffic — pages viewed, general location by country/region, device type. This does not include anything you type into a calculator.
Advertising. This site displays ads served by Google AdSense. Google and its partners may use cookies (including the DoubleClick cookie) to serve ads based on your prior visits to this or other websites. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites on the Internet. You can opt out of personalised advertising at adssettings.google.com, or via aboutads.info. See Google's own explanation of how it uses data from sites that use its services at policies.google.com/technologies/partner-sites.
What we don't do
We don't require an account for v1, don't sell personal data, and don't send calculator inputs to any third party. There is no server-side database in v1 — the localStorage data described above physically cannot leave your device unless you export or share it yourself.
Cookies
This site uses cookies for analytics and advertising as described above. You can control or delete cookies through your browser settings; blocking them may affect how ads and some site features work, but calculators themselves still function normally since their inputs are stored in local storage, not cookies.
Children's privacy
This site is not directed at children under 13 and we do not knowingly collect personal information from them.
Changes to this policy
We may update this policy as the site adds features (see the About page for what's planned, including an optional account in a future version). Material changes will be reflected on this page.
Contact
Questions about this policy: see the Contact page.