Privacy Policy

1. Who We Are

CalcFlow ("we," "our," or "us") operates the website at calculatorz.tools, providing free online calculators for finance, health, and everyday decisions. This Privacy Policy explains what information we collect, how we use it, and your rights regarding that information.

2. Information We Collect

We collect minimal information necessary to operate the site:

• Usage data: Pages visited, calculator interactions, time on site — collected automatically via analytics tools.
• Device data: Browser type, operating system, screen size, IP address (anonymized).
• Calculator inputs: Numbers you enter into calculators are processed locally in your browser. We do not store or transmit your calculator inputs to our servers.

We do not require account registration and do not collect names, email addresses, or payment information unless you choose to contact us or subscribe to a paid plan.

3. Cookies and Tracking

We use cookies and similar tracking technologies for the following purposes:

• Analytics cookies: To understand how visitors use the site and improve our calculators.
• Advertising cookies: To serve relevant advertisements through Google AdSense (see Section 4).
• Preference cookies: To remember your settings (e.g. currency selection, unit system).

You can control cookies through your browser settings. Disabling cookies may affect some site functionality. Most browsers allow you to refuse new cookies, delete existing cookies, or be notified when cookies are set.

4. Google AdSense and Advertising

CalcFlow uses Google AdSense to display advertisements. Google AdSense uses cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and other sites on the Internet.

You may opt out of personalized advertising by visiting Google's Ads Settings. You may also opt out of a third-party vendor's use of cookies for personalized advertising by visiting aboutads.info.

Google's privacy policy is available at policies.google.com/privacy.

5. How We Use Your Information

• To operate, maintain, and improve the website and calculators.
• To analyze usage patterns and optimize user experience.
• To display relevant advertisements through Google AdSense.
• To respond to your inquiries if you contact us.
• To comply with legal obligations.

We do not sell your personal information to third parties.

6. Third-Party Services

We use the following third-party services that may collect data independently:

• Google AdSense — advertising (Google LLC, USA)
• Google Analytics — usage analytics (Google LLC, USA)

Each of these services has its own privacy policy governing their data collection and use. We encourage you to review their policies.

7. Children's Privacy

CalcFlow is not directed to children under 13 years of age. We do not knowingly collect personal information from children under 13. If you believe we have inadvertently collected such information, please contact us and we will promptly delete it.

8. Your Rights (GDPR / CCPA)

Depending on your location, you may have the right to:

• Access the personal data we hold about you.
• Request correction or deletion of your data.
• Object to or restrict certain processing.
• Data portability (receive your data in a machine-readable format).
• Opt out of the sale of personal information (California residents under CCPA).

To exercise any of these rights, contact us at the address below.

9. Data Retention

We retain anonymized usage analytics data for up to 26 months. We do not retain calculator inputs. If you contact us, we retain correspondence for up to 3 years for record-keeping purposes.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify users of material changes by updating the "Last updated" date at the top of this page. Continued use of CalcFlow after any changes constitutes acceptance of the updated policy.

11. Contact Us

If you have questions about this Privacy Policy or wish to exercise your data rights, please contact us at: