Blackjack Strategy Trainer 21
CWTI Ltd Games iPhoneiPadiPod touch
Blackjack Strategy Trainer 21 is a free Games app for iPhone and iPad by CWTI Ltd. Requires iOS 15.0. Updated October 13, 2026.
- Price
- Free
- on the App Store
- Size
- 82 MB
- Age 4+
- Updated
- Oct 13
- 2026 · v37.0.0
Screenshots
About Blackjack Strategy Trainer 21
The house has a system. Do you? Stop guessing at the blackjack table. Blackjack Strategy Trainer 21 teaches you the mathematically correct play for every hand using proven spaced repetition techniques. Practice hit, stand, double, split, and surrender decisions with instant feedback. WHY THIS TRAINER IS DIFFERENT Unlike other blackjack apps, this trainer adapts to you. The spaced repetition system tracks which hands you get wrong and serves them more often, so you improve faster where it matters most. 3 RULE SETS FOR REAL TABLES Most blackjack trainers only support one rule set. This app supports three, so your training matches the exact table rules you may face: - S17: Dealer stands on soft 17 - H17: Dealer hits on soft 17 - ENHC: European No Hole Card FULL STRATEGY CHART Browse the complete basic strategy chart in a color-coded grid. See the correct play for every dealer upcard at a glance. Hard totals, soft totals, and pairs are all covered. SMART TRAINING FEATURES - Spaced repetition: hands you get wrong appear more often until you master them - Hand-type accuracy breakdown for hard totals, soft totals, pairs, and surrender decisions - Progressive daily goals that grow with your skill level - Daily streaks with Streak Shields to protect your progress - Auto-advance timer for rapid-fire practice sessions LEARN MODE Not sure where to start? Structured lessons cover basic strategy from the ground up. Each lesson includes clear rules and detailed explanations so you understand the reasoning behind every decision. CASINO-STYLE PRACTICE Train on an immersive green felt table with realistic playing cards. It feels closer to a real blackjack table than a boring quiz. AVAILABLE IN 8 LANGUAGES English, Korean, Italian, German, French, Spanish, Portuguese, and Romanian. CLOUD SYNC Create an account to sync your progress across devices. Switch phones without losing your stats, streaks, or shields. FREE TO PLAY Download and start training immediately. No subscription required. Perfect for casino beginners, experienced players refreshing before a trip, online blackjack players, and European players who need ENHC strategy. Reduce the house edge and play 21 with confidence.
What’s new
Version 37.0.0 · Updated October 13, 2026
New: make the same mistake on the same kind of hand four times in one session, and the app can offer the lesson that explains the right play. The daily reminder is now scheduled on your phone at the time you choose, so it arrives more reliably. Also new: a break from ads. When an ad is due, you can choose to watch one short video instead, and then play the next hands with no full-screen ads.
App privacy
The developer, CWTI Ltd, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Advertising Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Contact Info: Email Address
- Identifiers: User ID
Used for: App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Advertising Data, Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, Product Personalization, App Functionality
Alternatives to Blackjack Strategy Trainer 21
Looking for apps like Blackjack Strategy Trainer 21? Here are 6 similar apps on the App Store. The highest rated is Blackjack Trainer AI (5.0/5), and all 6 are free to download.
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Basic Strategy Blackjack
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Blackjack Trainer AI
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Blackjack Trainer: TwentyOne
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Blackjack for Fun
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Steve's Blackjack Trainer Pro
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Blackjack Guru - BJ Trainer 21
4.7
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Blackjack Strategy Trainer 21 | – | Free | October 13, 2026 | |
| Basic Strategy Blackjack | – | Free | Feb 24, 2026 | Compare |
| Blackjack Trainer AI | 5.0 / 5 (2) | Free | Jun 2, 2026 | Compare |
| Blackjack Trainer: TwentyOne | 5.0 / 5 (1) | Free | Oct 5, 2026 | Compare |
| Blackjack for Fun | 5.0 / 5 (2) | Free | May 8, 2026 | Compare |
| Steve's Blackjack Trainer Pro | 4.7 / 5 (25) | Free | Sep 7, 2026 | Compare |
| Blackjack Guru - BJ Trainer 21 | 4.7 / 5 (3,861) | Free | Sep 15, 2026 | Compare |