Privacy Policy
Last updated: July 1, 2026
1. Introduction
Welcome to MaterialCalc. We respect your privacy and are committed to protecting your personal data. This privacy policy will inform you about how we look after your personal data when you visit our website and tell you about your privacy rights and how the law protects you.
2. Information We Collect
MaterialCalc is designed with privacy in mind. We do NOT collect or store any personal information on our servers. All calculations and data are stored locally in your browser using localStorage.
Data Stored Locally
- Calculation history
- Saved projects
- Favorite calculators
- Theme preferences
3. How We Use Your Information
Since we don't collect your personal data on our servers, we don't use it for any purpose. All data stays on your device and is only used to provide the calculator functionality you request.
4. Cookies
We use minimal local storage (similar to cookies) only to remember your preferences and save your calculation history. This data never leaves your device.
Local Storage Used For:
- Theme preference (light/dark mode)
- Your calculation history
- Your saved projects
- Your favorite calculators
5. Affiliate Links
MaterialCalc may contain affiliate links to retailers like Home Depot, Lowe's, and Amazon. If you click on these links and make a purchase, we may earn a small commission at no extra cost to you. These third-party sites have their own privacy policies, and we have no responsibility or liability for their content or activities.
6. Third-Party Services
We may use third-party services for:
- Analytics (to understand how users use our site)
- Hosting and infrastructure
- Content delivery
These services may collect anonymous usage data but do not collect personal information.
7. Your Rights
Since your data stays on your device, you have complete control over it. You can:
- Access all your data at any time
- Delete your data by clearing your browser's localStorage
- Export your data using the export functionality
- Use the service without providing any personal information
8. Data Security
Since your data never leaves your device, it's as secure as your own computer and browser. We implement security best practices in our code to ensure the safety of your browsing experience.
9. Children's Privacy
MaterialCalc does not knowingly collect any personal information from children under 13. If you believe we have collected such information, please contact us immediately.
10. Changes to This Policy
We may update this privacy policy from time to time. We will notify you of any changes by posting the new privacy policy on this page and updating the "Last updated" date.
11. Contact Us
If you have any questions about this Privacy Policy, please contact us at:
Email: privacy@materialcalc.com