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Count21: Blackjack Practice

Card Counting Trainer
Ryan Bergeron · Education
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App info

Developer
Ryan Bergeron
Category
Education, Games, Card
Released
Oct 12, 2026
Version
1.0 (Oct 12, 2026)
Price
Free
Size
3.6 MB
Requires
iOS 17.0
Age rating
18+
Languages
English

In-app purchases

none
Current prices, App Store US.

About Count21: Blackjack Practice

A clear idea. A little practice. Count21 teaches blackjack card counting one skill at a time, with short lessons, focused drills and a practice table that explains your decisions. START WITH THE FOUNDATIONS Follow seven lessons covering why counting works, Hi-Lo card values, running count, true count, basic strategy, deviations and betting concepts. Begin with an interactive discovery, then explore card values by tapping real examples. Optional audio and matching transcripts guide you through the first two lessons, even offline. Later lessons end with ten-question rounds; nine correct completes the lesson. Continue directly to your next step. PRACTICE THE SKILL YOU NEED Work through five self-paced drills: card values, running count, true count, basic strategy and deviations. Choose guided practice or recall. Get an explanation after every answer, and revisit the lesson when an idea…
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