Privacy Policy
Last updated: February 2026
Introduction
At Calcufast, we are committed to protecting your privacy. This policy describes how we collect, use, and protect information when you use our online calculators.
Information We Collect
Calcufast is a tool that works entirely in your browser. We do not collect or store personally identifiable data. Calculations are performed locally on your device and are not sent to our servers. We only collect anonymous usage data through analytics tools to improve our service.
Use of Information
Anonymous analytics data is used to understand how users interact with our calculators, improve user experience, identify and fix technical errors, and develop new features.
Cookies and Local Storage
We use localStorage to save your preferences (theme, language, currency) and calculation history if you choose to enable this feature. This data remains on your device and is not shared with us or third parties.
Third-Party Services
We use the following third-party services: Google Analytics for web analytics, Vercel Analytics and Speed Insights for performance monitoring, and Google AdSense to display relevant ads. These services may use cookies and similar technologies to collect anonymous information about your visit, including pages visited, time on site, and device technical data. Google may use this information to personalize ads based on your browsing history. We recommend reviewing Google's privacy policies (policies.google.com) and Vercel's for more details.
Your Rights
Since we do not store personally identifiable data, there is no personal information we can delete or modify. You can clear your local history and preferences at any time from your browser by clearing site data.
Changes to This Policy
We may update this privacy policy occasionally. Changes will be posted on this page with a new update date.
Contact
If you have questions about this privacy policy, you can contact us at hello@calcufast.com.