Privacy policy

Effective July 2026.

StatsLearn has no accounts, no sign-in, and no forms. We do not collect, store, or sell personal information. Calculator inputs and interactive states stay in your browser and are never sent to a server.

We use privacy-respecting analytics (Vercel Analytics and, if enabled, Google Analytics 4 configured with IP anonymization and ad personalization disabled) to count visits and see which pages help people. Your theme preference (light or dark) is stored locally in your browser only.

The site links to external sites (for example, econlearn.org and collegeboard.org); their privacy practices are their own.

Questions: see the about page for contact details.