Cookie Policy
Last updated: July 2, 2026
What Are Cookies?
Cookies are small text files stored on your device by websites you visit. We take a minimal approach — no advertising trackers, no cross-site profiling. Last updated: July 2, 2026.
How We Use Cookies & Local Storage
We use browser local storage (not traditional cookies) for essential functionality only:
| Name | Type | Purpose | Duration |
|---|---|---|---|
| sc-theme | Local Storage | Light or dark mode preference | Until you clear browser data |
| sc-favorites | Local Storage | Calculators you marked as favorites | Until you clear browser data |
| sc-history | Local Storage | Recently used calculators for quick access | Until you clear browser data |
Important: We do not store your calculation inputs in cookies or local storage. Numbers you enter into calculators are processed in memory and discarded when you leave the page.
Third-Party Services
We load fonts from Google Fonts. Google may collect limited technical data per their privacy policy. We do not embed third-party advertising, social media widgets, or behavioral tracking scripts.
Analytics
If enabled, we may use privacy-respecting analytics that collect aggregate page views without personal identifiers. Analytics never receive your calculator inputs.
Managing Cookies & Storage
Clear cookies and local storage through your browser settings:
- Chrome: Settings → Privacy → Clear browsing data
- Firefox: Settings → Privacy → Clear Data
- Safari: Preferences → Privacy → Manage Website Data
Clearing storage resets your theme, favorites, and history on our site.
Contact
Questions? Visit our Contact page or read our Privacy Policy.