Privacy Policy
Last updated: June 2026
This Privacy Policy describes how numCruncher ("we," "us," or "our") collects, uses, and shares information when you visit numcruncher.net.
Information We Collect
Calculator inputs. All calculations on numCruncher run entirely in your browser. Numbers you enter into any calculator are never sent to our servers, stored, or shared. We have no access to your financial, health, or personal data.
Usage data. Like most websites, we receive standard server log information when you visit — including your IP address, browser type, referring page, and pages viewed. This data is used in aggregate to understand site traffic and is not linked to any individual.
Cookies. We use cookies to remember your light/dark mode preference. Third-party services (described below) may set their own cookies for advertising and analytics purposes.
Google AdSense
We use Google AdSense to display advertisements. Google may use cookies and similar technologies to show you ads based on your prior visits to this site and other sites across the web. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to numcruncher.net and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google Ads Settings or aboutads.info. For more information on how Google uses data from sites that use its services, visit Google's Privacy & Terms.
Google Analytics
We may use Google Analytics to understand how visitors use our site. Google Analytics collects information such as how often users visit, what pages they visit, and what sites they visited prior to coming to numcruncher.net. This data is used in aggregate form only. You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.
How We Use Information
We use the information we collect to operate and improve the site, understand usage patterns, and serve relevant advertising. We do not sell personal information to third parties.
Third-Party Links
Our site may contain links to third-party websites. We are not responsible for the privacy practices of those sites and encourage you to review their privacy policies.
Children's Privacy
numCruncher is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us and we will delete it promptly.
Your Choices
You can disable cookies in your browser settings, though doing so may affect site functionality. To opt out of interest-based advertising, visit the Network Advertising Initiative opt-out page.
Changes to This Policy
We may update this Privacy Policy from time to time. The "Last updated" date at the top of this page will reflect any changes. Continued use of the site after changes constitutes acceptance of the updated policy.
Contact
If you have questions about this Privacy Policy, please contact us.