Master blackjack with a personal coach that teaches perfect strategy and card counting. Practice on a realistic play-money table with instant feedback and personalized recommendations for improvement. No real money involved, just skill development.
1.1.1
September 4, 2026
A brand-new Coach 21. We rebuilt the whole app around a refined new look — “The Vault” — plus a smarter home screen that tells you what to practice next, richer post-game analysis, and six selectable themes. Same trusted training, a dramatically better experience.
More$9.99
21 Academy Pro
Advanced strategy, analytics, session history, and more
No, Coach 21 is ad-free, allowing for an uninterrupted learning experience.
Coach 21 is free to learn with. The Pro version, which unlocks advanced features like full session history and analytics, is available as a one-time purchase. A 3-day Full Access Pass is also offered.
Coach 21 teaches perfect basic strategy, providing instant feedback on the correct move (hit, stand, double, or split) for every hand.
Yes, Coach 21 allows you to learn the Hi-Lo card counting system step-by-step and train your speed and accuracy with timed drills.
Yes, Coach 21 is designed to meet users where they are, whether they are learning the game or drilling for flawless play, with structured lessons and clear explanations.
Coach 21 is currently supported on iPhone devices.
The latest version, 1.1.1, was released on September 4, 2026, indicating recent development activity.
Coach 21 has an age rating of 17+, likely due to its casino game simulation nature.
