Privacy Policy

Last updated: [YYYY-MM-DD]

Calculator Hub ("we", "the site") is a static, browser-based collection of calculators operated by [Your Name / Site Owner]. This policy explains what data is and isn't collected when you use the site.

Calculator inputs stay on your device

Every calculator on this site runs entirely in your browser. Numbers you enter (balances, salary, body measurements, etc.) are never sent to our servers, because the site has no server. They are stored only in your own browser's localStorage so that values persist between visits, and you can clear them at any time via your browser's site data controls.

Settings stored locally

Your currency selection and dark/light theme preference are saved in localStorage on your device only.

Analytics

We use Google Analytics 4 to understand aggregate traffic (page views, country, referrer, approximate device). IP addresses are anonymized. If you prefer not to be tracked, use a browser with Do Not Track enabled, install an ad/tracker blocker, or disable JavaScript — calculators continue to work without analytics.

Advertising

This site may display ads served by Google AdSense. AdSense and its partners may use cookies to serve ads based on your prior interactions with this and other websites. You can opt out of personalized advertising via Google's Ads Settings page, and learn more at aboutads.info.

Affiliate links

Some outbound links are affiliate links. If you click one and make a purchase or sign up, we may earn a commission at no extra cost to you. Affiliate links are marked rel="sponsored nofollow" and disclosed in context. See our Affiliate Disclosure for details.

Third-party services

• Google Analytics 4 — traffic measurement (anonymized IPs).
• Google AdSense — display advertising (only when active).
• Skimlinks — automatic affiliate redirection of outbound merchant links (only when active).
• Your browser's standard localStorage for input persistence.

Children's privacy

This site is not directed to children under 13 and we do not knowingly collect personal information from children.

Changes to this policy

We may update this policy from time to time. Material changes will be reflected in the "Last updated" date above.

Contact

Questions about this policy? Email [your-email@example.com] or use our contact page.

This privacy policy is provided as a template. For sites with significant traffic or specific legal exposure, consider review by a qualified professional in your jurisdiction.