Privacy Policy
Effective date: June 27, 2026
1. Overview
CalcHub ("we", "us", "our") is committed to protecting your privacy. This policy explains what information we collect, how we use it, and your rights regarding it. By using CalcHub, you agree to this policy.
2. Information we collect
Calculator inputs: All calculations are performed entirely in your browser. The numbers you enter are never transmitted to our servers and are not stored anywhere.
Analytics & Monetization: We use third-party tools like Google Analytics and Ahrefs to collect anonymous, aggregated usage data to improve our platform. In the future, we may also partner with advertising networks such as Google AdSense to display advertisements, which helps us fund the project. These third-party services may use cookies to serve personalized or non-personalized ads and to measure site usage.
Contact form: If you contact us, we collect only the name, email address, and message content you voluntarily provide, solely to respond to your inquiry.
3. Cookies
CalcHub uses cookies and similar technologies for analytics and advertising. Future advertising partners like Google AdSense may use cookies to serve ads based on your prior visits to our website or other websites on the Internet. You can opt out of personalized advertising by visiting Google's Ads Settings.
4. Third-party services
We use Cloudflare to host and serve CalcHub securely, and Google Analytics to measure our traffic. In the future, we may also use advertising partners like Google AdSense to serve advertisements. These third-party providers may process data globally and use cookies. Please refer to their respective privacy policies for more details on how they handle your data.
5. Children's privacy
CalcHub is not directed at children under 13. We do not knowingly collect personal information from children.
6. Changes to this policy
We may update this policy from time to time. Changes will be reflected by updating the effective date at the top of this page.
As our product evolves, service features, access requirements, and pricing model may also change. Any material privacy-impacting updates will be reflected in this policy.
We currently do not require account creation, but this may change in the future. To support free access, we may display advertisements now or in the future.
7. Contact
If you have questions about this policy, please contact us.