Privacy policy

What information we collect, how we use it, and your choices.

Last updated September 23, 2026

This privacy policy explains how Numbriv ("we", "us") handles information when you visit numbriv.com (the "Site").

Information you enter in calculators

All calculations run in your web browser. The numbers you enter are not sent to or stored on our servers. If you use "Copy link to results", your inputs are placed in the link itself, and only people you share it with can see them.

Information collected automatically

Like most websites, we and our partners may collect standard technical information such as your IP address, browser type, device, pages visited and time spent on the Site. We use this to operate, secure and improve the Site.

Cookies and advertising

We use Google AdSense to show ads. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this Site or other websites. Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this Site and/or other sites on the Internet.

You may opt out of personalized advertising by visiting Google's Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalized advertising at aboutads.info. To learn how Google uses information from sites that use its services, visit Google's partner sites policy.

You can change your cookie choices at any time using Cookie settings.

Partner links

Some pages include sponsored links to partners. If you click one, the partner may use cookies to record that you came from our Site. Their own privacy policies apply once you leave our Site.

Your rights (EEA and UK visitors)

Under the GDPR and UK GDPR, you have the right to access, correct or delete personal data we hold about you, to object to or restrict its processing, and to withdraw consent at any time. We rely on your consent for advertising cookies and on legitimate interests for essential site operation. You may also complain to your local data protection authority.

Your rights (California residents)

Under the CCPA/CPRA, you may request to know what personal information is collected, request its deletion, and opt out of the sale or sharing of personal information for cross-context advertising. We do not knowingly sell personal information. To make a request, contact us at info@numbriv.com.

Children's privacy

The Site is not directed at children under 13 (or under 16 in the EEA and UK), and we do not knowingly collect their personal information.

Changes and contact

We may update this policy and will change the "last updated" date when we do. Questions? Email info@numbriv.com.