Learn from each hand
Get hand-specific explanations and see how a different dealer upcard would change the move.
A Mobax Studios app
Clear 21: Blackjack TrainerA little practice.
A clearer decision.
Learn blackjack basic strategy one decision at a time, with instant feedback, short lessons and a review of the hands you missed. Coming soon to the App Store for iPhone.
Practise with purpose
Every decision, explained
Choose hit, stand, double, split or surrender, then see the recommended move and why it works for that hand and dealer upcard.
Turn mistakes into practice
Recently missed hands come back for review, so a mistake becomes your next learning opportunity.
Find the right move
Explore hard hands, soft hands and pairs in an interactive strategy chart, or look up your own hand.
Build your foundation
Ten short lessons with practical exercises cover card values, soft hands, doubling, splitting and more.
Make it a habit
Try a 60-second drill or a 20-hand daily challenge, and track your accuracy and practice streaks.
Practise your table
Set 1 to 8 decks, whether the dealer hits soft 17, double after split and late surrender.
About Clear 21
A trainer, not a casino
Clear 21 is an educational app. There is no real-money play, no deposits, no balances and no prizes. Training needs no account, and your progress stays on your device.
Honest about scope
The app teaches conventional total-based basic strategy for dealer-peek games. It does not teach card counting or composition-dependent exceptions.
Checked strategy
Strategy tables were checked against published basic-strategy references for every supported rule combination.
Private by design
No account, no advertising and no analytics. Read the privacy policy for details.
Strategy does not guarantee winning. Basic strategy describes the best average decision for the stated rules. Clear 21 is for learning and practice only.