Privacy Policy

Last updated: September 5, 2026

BestCalc ("we", "our", or "the site") respects your privacy. This policy explains what information is collected when you use https://bestcalc.app and how it is used.

Calculations Stay on Your Device

All calculators on BestCalc run entirely in your web browser using JavaScript. The numbers you enter are processed locally on your device and are never transmitted to, stored on, or logged by our servers.

Information We Collect

We do not require accounts or registration, and we do not collect personal information such as names or email addresses unless you voluntarily email us.

Analytics

We use Google Analytics to understand how visitors use the site (for example, which calculators are most popular). Google Analytics collects anonymized usage data such as pages visited, approximate geographic region, device type, and browser. This data is governed by the Google Privacy Policy. You can opt out using the Google Analytics Opt-out Browser Add-on.

Advertising and Cookies

We may display advertisements served by Google AdSense and other third-party advertising vendors. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.

Google's use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet. You may opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of third-party vendors' use of cookies for personalized advertising at www.aboutads.info/choices.

Your Rights

Depending on your jurisdiction (for example, the EU/EEA under GDPR or California under CCPA), you may have rights regarding your personal data, including the right to access, correct, or delete it. Because we do not store personal data from calculations, most such requests relate to analytics or advertising data held by Google, which you can manage through the Google links above. You may also contact us at any time with privacy questions.

Children's Privacy

BestCalc is a general-audience tool site and is not directed at children under 13. We do not knowingly collect personal information from children.

Changes to This Policy

We may update this policy from time to time. Any changes will be posted on this page with an updated revision date.

Contact

If you have questions about this privacy policy, contact us at contact@bestcalc.app or via our contact page.