21 Trainer is a focused practice app for learning blackjack fundamentals and mastering the
Hi-Lo counting system. Play hands in a clean table view, then switch to dedicated training and
quick drills to build speed and accuracy.
Features:
- Play mode to practice real decision flow hand by hand.
- Training mode for running and true count practice with optional quizzes.
- Quick Drills with adjustable duration, auto-advance pace, mid-quizzes, and a final check.
- Detailed statistics across play, training, and drills: hands played, win rate, counting
accuracy, and decision time.
- Customization for decks, themes, card styles, and quiz options.
Whether you are new to counting or polishing your skills, 21 Trainer helps you practice
deliberately and track your progress over time.
