Blackjack - Learn, Practice

Blackjack - Learn, Practice

Card counting & strategy

13 ratings
3 reviews
Free
In-App Purchases

Details

Released
January 30, 2026
Updated
October 23, 2026

Features

Blackjack - Learn, Practice screenshot #1 for iPhone
Blackjack - Learn, Practice screenshot #2 for iPhone
Blackjack - Learn, Practice screenshot #3 for iPhone
Blackjack - Learn, Practice screenshot #4 for iPhone
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About

Master blackjack strategy and card counting with progressive lessons and real-time feedback. Learn to calculate house edge and make mathematically correct plays to beat the dealer.

✓18 progressive strategy lessons
✓Full Hi-Lo card counting course
✓EV calculator for house edge analysis
✓Real-time feedback on every hand
✓Realistic casino gameplay simulation
✓Detailed progress tracking
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+1

What's New in Blackjack

1.4.11

October 23, 2026

Added an extra fast card counting practice mode Added multi-table card counting practice modes Corrected a bug in deviation practice that gave the wrong answer Added blackjack basics lessons for the complete beginner Added key terms to each lesson for review

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Subscriptions & In-App Purchases

Pro Monthly

Access app features

$3.991 Month
3 Days trial
How to cancel Blackjack subscription ⁉️

User reviews

Prepping for the casino! Some minor issues though.

This is what I was looking for to get a strategy together. Helps me practice deviations, but sometimes the deviation practice tells me I’m incorrect and says the correct answer is the one I chose - for example, I doubled an 11 against an Ace at a TC of 4, and the quiz told me I was wrong and should only double if TC is more than 1… which it was. Please double check the quiz answers and also if you could add a feature to practice keeping a running count with multiple hands or an even faster count practice that would be the only thing I have left to practice.
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Response from developer

Thanks so much for the feedback! Check out version 1.4.11, which I just released. It includes some bug fixes for the deviation practice mode, a faster card counting review mode and multi-table card counting review mode. Let me know if this helps! Feel free to reach out directly as well, with more feedback at hello@robinkanatzar.com. Cheers!

Decent app with room for improvement

I like the app it’s design and the tutorials. It’s nicely done and the pricing is fair for what you get. However for me to use the app it’s still missing one feature so I would enjoy using it more. Currently there are only the theoretical basics in separate tutorials which is good. What I am missing is a Casino practicemode. A mode where you start with some dollars and you can bring your knowledge to practice. This could even be splinted into different difficulties with deck counts, different player amounts and for real world scenarios with the deck counts casinos use and alterin player amounts during rounds.
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Awesome

Just what I was looking for! It’s like duolingo for blackjack!

Response from developer

So glad you enjoy the app! Thanks so much for the review.

Developer apps

FAQ

What is the learning methodology of Blackjack Trainer 21?

Blackjack Trainer 21 uses a structured, progressive curriculum with 18 lessons. It starts with basic strategy and advances to complex card counting techniques and deviations, requiring 90% accuracy to progress.

How does Blackjack Trainer 21 track user progress?

The app provides detailed progress tracking, including per-lesson accuracy percentages, rolling 50-hand performance statistics, lifetime stats by hand type, and visual progress bars to show improvement.

Does Blackjack Trainer 21 offer offline play?

Yes, Blackjack Trainer 21 works offline, allowing users to train their blackjack skills and card counting abilities without an internet connection.

What are the subscription options for Blackjack Trainer 21?

Some advanced features, such as the Illustrious 18 deviations and the EV calculator, require a PRO subscription. The app is free to download and use for basic training.

Is Blackjack Trainer 21 suitable for beginners?

Yes, the app is designed to turn beginners into confident, skilled players through its structured training system, starting with fundamental strategies and progressing to advanced techniques.

What is the age rating for Blackjack Trainer 21?

Blackjack Trainer 21 has an age rating of 4+, making it suitable for a wide range of users interested in learning blackjack strategy.

How often is Blackjack Trainer 21 updated?

The latest version is 1.4.5, and the app was last updated on March 13, 2026. This indicates a commitment to ongoing development and improvements.

What devices does Blackjack Trainer 21 support?

Blackjack Trainer 21 is currently supported on iPhones, with a small download size of 7.5 MB, ensuring it runs efficiently on compatible devices.