Privacy Policy

Last updated: January 2026

The Short Version

ShopMath is designed with privacy in mind. We don't require accounts, we don't track individual users, and we don't sell your data. Your calculations stay in your browser.

Information We Collect

Analytics Data

We use privacy-focused analytics to understand how our calculators are used. This includes:

  • Page views and calculator usage (aggregated, not individual)
  • General geographic region (country level)
  • Device type and browser (for compatibility testing)
  • Referring websites

This data is collected in aggregate and cannot be used to identify individual users.

Calculator Inputs

Your calculator inputs are processed entirely in your browser. We do not send your calculation data to our servers. Your values, results, and any inputs remain on your device.

Contact Information

If you email us at reach@shopmath.fyi, we'll have your email address and whatever information you choose to share. We use this solely to respond to your inquiry.

Information We Don't Collect

  • Personal identification information
  • Account credentials (we don't have accounts)
  • Calculator input values
  • Precise location data
  • Cookies for tracking purposes

Cookies

ShopMath uses minimal cookies strictly for essential functionality:

  • Remembering your unit preference (Imperial/Metric) if you set one
  • Basic analytics (aggregated, privacy-focused)

We do not use tracking cookies.

Third-Party Services

We may use the following third-party services:

  • Cloudflare for hosting and security
  • Privacy-focused analytics (no personal data collected)

These services have their own privacy policies. We've chosen providers that prioritize user privacy.

Data Retention

Since we don't collect personal data, there's nothing to retain or delete. Analytics data is aggregated and anonymized immediately upon collection.

Your Rights

You have the right to:

  • Use ShopMath without providing any personal information
  • Block cookies through your browser settings
  • Request deletion of any emails you've sent us

Changes to This Policy

We may update this privacy policy from time to time. We'll update the "Last updated" date at the top of this page when we make changes.

Contact

Questions about this privacy policy? Contact us at reach@shopmath.fyi.