Blackjack Strategy: 21 Trainer
Card Counting & Casino Coach
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
The only blackjack trainer that explains WHY each play is correct. 4 counting systems, 9 casino presets, 270+ hand scenarios with instant feedback.
Stop guessing. Start playing perfect blackjack.
21 Trainer tells you the mathematically correct play for every hand, and explains WHY, so you walk into any casino with confidence, not hope.
Whether you're learning basic strategy for the first time or drilling advanced card counting deviations, 21 Trainer adapts to your level.
▸ LEARN THE RIGHT PLAY (FREE)
• 270+ hand scenarios with instant right/wrong feedback and clear explanations for every decision
• Color-coded strategy charts that adjust automatically to your selected house rules
• 9 real casino presets: Vegas Strip, Downtown Vegas, Atlantic City, Macau, Monte Carlo, Sydney, European (ENHC), Single Deck, and Double Deck
• Full rule customization: decks (1-8), H17/S17, DAS, early/late surrender, split limits, 3:2 or 6:5 payout
• Track accuracy, streaks, and set session goals
▸ GO PRO: MASTER THE EDGE
• 4 Card Counting Systems: Hi-Lo, KO, Omega II, and Zen Count
- Single Card Drill: lock in point values
- Multi-Card Counting: build speed under pressure
- Deviation Trainer: learn when the count overrides basic strategy
• Bankroll Simulator: run virtual sessions with real bet sizing, then review your ROI, strategy adherence, and a hand-by-hand mistake breakdown
• Hard Mode: finds your weakest hands and drills them until they're strengths
• Advanced Statistics: accuracy heat maps by hand type and dealer upcard, session history, and progress tracking
▸ BUILT FOR SERIOUS PLAYERS
• Works 100% offline, practice anywhere
• Left and right-handed layouts
• Blind Mode: hide totals, read the cards like a pro
• 4 felt colors, 5 card back designs, haptic feedback
• Auto-deal with adjustable speed
No real money. No gambling. No data collected. Just pure strategy training for players who refuse to leave money on the table.
Privacy Policy: https://21trainer.app/privacy
Terms of Use: https://21trainer.app/terms
Support: https://21trainer.app/support
Ratings & Reviews
Blackjack training improvements & bug fixes
The developer, Apphaze, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- APPHAZE LIMITED
- Size
- 36.9 MB
- Category
- Card
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
18+
- 18+
- Frequent
Simulated Gambling
- In-App Purchases
Yes
- 21 Trainer Pro $8.99
- 21 Trainer $59.99
- 21 Trainer Pro $14.99
- Copyright
- © 2025 AppHaze Limited.