Privacy Policy & Advertising Disclosure
Last Updated: October 2, 2026
Welcome to CalcZoon ("we", "our", or "us"). We believe in absolute transparency regarding how user data is handled. This Privacy Policy details our privacy practices, our use of cookies, third-party advertising disclosures (including Google AdSense), and how your rights are protected under UK GDPR, EU GDPR, and US State Privacy Laws (including California CCPA/CPRA).
Zero Tool-Data Storage: All calculations, inputs, and numbers you enter on CalcZoon (including financial balances, health metrics, and personal formulas) are processed entirely inside your browser (client-side). We do not transmit, log, or store your calculator inputs on any server.
1. Google AdSense & Third-Party Advertising Disclosure
To maintain our platform and keep all 24+ calculators 100% free for everyone, CalcZoon may display advertisements served by Google AdSense and authorized third-party ad networks.
Important Disclosures Regarding Google Advertising:
- Third-Party Vendors: Google, as a third-party vendor, uses cookies to serve advertisements on our site.
- DoubleClick DART Cookie: Google’s use of advertising cookies (including the DoubleClick cookie) enables it and its partners to serve targeted ads to our users based on their visits to CalcZoon and other websites across the Internet.
- Personalized vs. Non-Personalized Ads: Depending on your geographic location and cookie consent choices, ads may be personalized based on browsing history or non-personalized based on page context.
- Opting Out: Users may opt out of personalized advertising at any time by visiting Google Ads Settings. Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info or Your Online Choices.
2. Cookies and Tracking Technologies
A cookie is a small text file placed on your device. We categorize the cookies used on our website into:
- Essential / Technical Cookies: Required for the fundamental functionality of the website, such as remembering your theme preference (dark/light mode) or unit toggles (Metric vs. Imperial). These do not collect personal identifiers.
- Analytics Cookies (Google Analytics 4): Used with your consent to gather anonymous, aggregated statistics on how visitors interact with our calculators (e.g., page views, error counts, geographic region). IP addresses are anonymized.
- Advertising Cookies: Deployed by third-party advertising partners (such as Google AdSense) to measure ad performance, prevent ad fraud, and display relevant commercial messages.
You can manage or disable cookies at any time through your web browser preferences. Note that disabling essential cookies may impact certain interface toggles.
3. Information We Do Not Collect
CalcZoon does not require user registration or account creation to use any of our 24 calculators. We do not collect or store:
- Your personal financial data (loan amounts, salaries, mortgage details, interest rates).
- Your personal health statistics (weight, height, age, calorie targets, body measurements).
- Your payment information or bank credentials.
4. User Rights (UK/EU GDPR & US CCPA/CPRA)
Depending on where you reside, you possess specific legal rights over your personal data:
UK & EU GDPR Rights
Right of access, rectification, erasure, data portability, and the right to withdraw cookie consent at any time without penalty.
California (CCPA/CPRA)
Right to know what personal info is collected, request deletion, and opt-out of the sale/sharing of personal data. We do not sell personal data.
5. Data Controller Contact Information
If you have questions regarding this Privacy Policy, our advertising practices, or wish to exercise your data rights, please contact our designated Data Protection officer:
CalcZoon (Data Controller)
Location: Operating from the United Kingdom
Official Contact & Support: calczy2025@gmail.com
Website: calczoon.com/contact