Privacy Policy

Last updated: March 2026

Information We Collect

SparkCalc is designed to work without registration. We do not collect personal information, emails, or account data. Our calculators run entirely in your browser.

Cookies & Local Storage

We use browser localStorage to save your language preference, theme choice, and AI usage counter. This data stays on your device and is never sent to our servers.

Analytics

We use Google Analytics to understand how visitors use our site (pages visited, time on site, device type). This data is anonymized and helps us improve SparkCalc.

Advertising

We display ads through Google AdSense. Google may use cookies to serve ads based on your browsing history. You can opt out of personalized advertising at Google Ad Settings.

AI Assistant

When you use the AI assistant, your calculator values and question are sent to our server to generate a response. We do not store these conversations.

Contact

For questions about this policy, contact us at privacy@sparkcalc.app.