Privacy Policy

1 Information We Collect

We collect minimal information to provide and improve our services:

• Usage Data: Anonymous page views, browser type, device type, country, and referring URL collected via Google Analytics.
• Calculation Data: Numbers you enter into our calculators are never sent to our servers. All calculations happen 100% locally in your browser.
• Local Storage: We may store calculation history in your browser's localStorage to power the History feature. This data stays on your device only.

We do not collect: name, email, phone number, payment information, or any personally identifiable information.

2 How We Use Information

The anonymous data we collect is used solely for:

• Understanding which features are most popular
• Improving performance and user experience
• Diagnosing technical issues
• Measuring website traffic and growth

We do not use your data for advertising, profiling, or selling to third parties.

3 Cookies & Analytics

We use the following technologies:

• Google Analytics (GA4): Collects anonymous usage statistics. You can opt out via the Google Analytics Opt-out Browser Add-on.
• Service Worker Cache: We cache static assets (HTML, CSS, JS) in your browser to enable offline use and faster loading. No personal data is stored.
• localStorage: Used to save your calculation history and theme preference (dark/light mode). No data leaves your device.

We do not use advertising cookies, tracking pixels, or cross-site tracking technologies.

4 Third-Party Services

We integrate the following third-party services, each with their own privacy policies:

• Google Analytics: policies.google.com/privacy
• Google Fonts: Fonts are loaded from Google's CDN. Google Privacy Policy
• Google Translate: Optional translation service. Only activates when you choose a language. Google Privacy Policy

5 Data Storage & Security

Since we do not collect personal data, there is no personal data stored on our servers. Your calculation inputs remain entirely on your own device.

Our website is served over HTTPS, ensuring all data transmitted between your browser and our server is encrypted.

6 Your Rights

Depending on your location, you may have the following rights under GDPR, CCPA, or other applicable laws:

• Right to Know: You may request information about what data we hold about you.
• Right to Delete: You may request deletion of your data. Since we hold no personal data, you can clear your browser localStorage at any time to remove locally stored history.
• Right to Opt Out: You may disable Google Analytics using the opt-out browser extension.

To exercise any rights, contact us at contact@percentagescalculator.online.

7 Children's Privacy

Our service is suitable for all ages. We do not knowingly collect any personal data from children under 13. Since no registration or personal data submission is required to use our calculators, children can safely use the site.

8 Changes to This Policy

We may update this Privacy Policy from time to time. We will update the "Last updated" date at the top of this page. Continued use of our service after changes constitutes your acceptance of the revised policy.

9 Contact Us

If you have any questions about this Privacy Policy, please contact us:

• Email: contact@percentagescalculator.online
• Website: percentagescalculator.online