Privacy Policy
Last updated: April 2026
What we collect
We use PostHog for anonymous analytics (page views, button clicks, funnel completion) and Sentry for error tracking. Vercel Analytics collects anonymous performance metrics. We do not collect your name, email address, or any personally identifiable information.
Cookies and local storage
We do not use cookies. Your test progress, reading plan completion, and quiz answers are saved in your browser's local storage. This data never leaves your device and is not sent to any server.
Analytics consent
When you first visit, we ask whether you consent to analytics tracking. If you decline, PostHog is never loaded and no analytics data is collected. You can reset your consent choice at any time by clearing your browser data for this site.
Third-party services
PostHog (analytics), Sentry (error monitoring), and Vercel (hosting and performance) may process aggregated, anonymous data on their servers. We do not share any data with advertisers or sell data to third parties.
Data retention
Analytics data is retained according to PostHog's and Sentry's default retention policies. Local storage data persists until you clear your browser data or reset your progress within the app.
Contact
If you have questions about this privacy policy, you can reach us through the project's GitHub repository.