Blackjack Trainer: 21 Coach
Practice the mathematically correct play for every hand, one deal at a time.
What it is
Blackjack Trainer is a free practice app that teaches basic strategy, the play that gives the house the smallest possible edge. You play real hands against a dealer and get instant feedback the moment your move differs from the correct one.
- No real money, no wagering, no payouts. It is a practice tool, not a gambling app.
- No account, no signup, no ads.
- Works fully offline. Your progress stays on your device.
Your privacy
The app collects nothing. No personal data, no analytics, no tracking, and nothing leaves your phone. Read the full policy here: Privacy Policy.
Support
Questions, bugs, or feedback: aadityasp@gmail.com. I read every message.