Learn every correct move

Play blackjack by the book.

A focused, offline tutorial and strategy coach for learning when to hit, stand, double, split, or surrender—and why.

Available now on the App Store and Google Play.

Two playing cards forming an open playbook and checkmarkS17 · H171–3 hands
OfflineNo accountNo subscriptionNo ads or tracking

A complete learning loop

Study it. Practice it. Check it.

01

Learn the logic

Guided lessons explain hard hands, soft hands, pairs, dealer up cards, and the table rules that change the book play.

02

Practice one to three hands

Play realistic rounds, get immediate coaching, and score the decision—not whether chance happened to reward it.

03

Look up the current hand

Enter actual player cards and the dealer up card to see the rule-aware basic-strategy recommendation.

04

Understand side bets

Explore Perfect Pairs and 21+3 hands, example paytables, probabilities, and house-edge context without confusing them with main-hand strategy.

What “by the book” means

Judge the decision, not the result.

Basic strategy improves expected results and usually reduces the casino’s edge. It cannot guarantee a winning hand, session, or profit, and it does not make every game favorable to the player.

Free blackjack guides

Understand the rules behind the move.

Build table-ready confidence

Make the correct play feel automatic.

Educational use only.

Blackjack is a game of chance. Never gamble more than you can afford to lose. Electronic strategy aids may be prohibited by law or casino policy even when printed reference cards are allowed.