Privacy

Privacy for a free learning platform.

Last updated August 2, 2026. This page explains the progress, account, and optional analytics data used by Blackjack Blueprint.

What We Store

Guest progress is kept in this browser session. Signed-in accounts can save learning progress, XP, streaks, rewards, history, mistakes, display name, and leaderboard opt-in preferences.

Account Data

Authentication is handled by Clerk. Blackjack Blueprint uses the signed-in user ID to connect saved progress to the account.

Optional Analytics

If you choose Allow analytics, Google Analytics 4 helps us understand which pages, lessons, and tools people use. Google may receive the page viewed, general device and browser details, approximate location, and interaction data. We do not use analytics for advertising, and GA4 stays off until you allow it. You can change your choice at any time with Cookie settings in the footer.

Leaderboards

Leaderboards are opt-in. If enabled, the public view can show display name, XP, streak, trainer accuracy, and practice count. It does not show private account details.

No Gambling Data

The platform does not accept deposits, process wagers, run casino games, or store payment details for gambling.