Privacy Policy

Effective date: September 20, 2026

The short version

We don't collect, store, or sell your personal data. Every calculator and AI tool runs entirely in your browser. Your inputs never reach our servers.

What we don't do

• We don't require accounts, email addresses, or any sign-up.
• We don't store the numbers, text, or files you enter.
• We don't use cookies for tracking.
• We don't sell user data to third parties — there is no user data to sell.

What we do use

Advertising (Google AdSense): We display ads through Google AdSense. Google may use cookies (including the DoubleClick cookie) to deliver ads — including ones based on your prior visits to this site or other sites — and to measure impressions and clicks. Where required by law (EU/UK), AdSense will only set personalisation cookies after you grant consent through the consent banner.

Aggregate analytics: We use Cloudflare Web Analytics, a privacy-friendly service that counts page views and country-level traffic without setting any tracking cookies or identifying individual visitors. We do not use Google Analytics.

To opt out of personalised ads from Google, visit Google Ads Settings, the DAA's aboutads.info, or install an ad blocker. See the full Cookie Policy.

Third-party services

We rely on a small number of trusted services to run the site:

• Cloudflare Pages — hosts and serves every page.
• Cloudflare Web Analytics — aggregate page-view counters (no personal data, no cookies).
• Google AdSense — serves advertisements and may set cookies for ad personalisation and frequency capping (see our Cookie Policy).
• Frankfurter / European Central Bank — the Currency Converter fetches live exchange rates from this free public service. Only the currency codes (e.g. "USD") are sent, never any personal data.

Children's privacy

CalcLabHub is not directed at children under 13. We do not knowingly collect information from children.

Changes to this policy

If we update this policy, we'll post the new version here with a revised effective date.

Related policies

• Disclaimer — what the tools can and can't do for you.
• Terms of Service — the rules for using the site.
• Cookie Policy — full cookie and opt-out details.

Contact

Questions about privacy? Contact us.