Privacy Policy

Effective 2026-08-05. The short version: we know almost nothing about you, and we like it that way.

No accounts, no personal data

Blackjack Trainer has no signup. We do not collect names, email addresses, or payment information. Your training progress, session history, and table-rule preferences are stored in your browser's localStorage — on your device, never sent to us. Clearing your browser data erases them; we couldn't restore them if we wanted to, because we never had them.

Analytics

We use privacy-respecting product analytics (PostHog) to understand which pages and features are used — page views, feature events, and the coarse technical context browsers provide (browser type, country, referrer). We use this to decide what to build next. We do not sell data or run third-party advertising trackers.

Hosting

The site is hosted on Vercel, which processes standard server logs (IP addresses, request URLs) to serve the site, per their privacy policy.

Changes and contact

If this policy changes materially, the effective date above changes with it. Questions: contact the site operator via the domain's registration contact.