Comparison

21 Trainer vs Blackjack Trainer

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

21 Trainer

Master blackjack strategy with this trainer. Practice realistic hands, receive instant feedback on your decisions, and improve your accuracy. Ideal for beginners and experienced players looking to sharpen their skills without real-money gambling.

Highlights
  • Learn blackjack basic strategy
  • Practice realistic hands
  • Train hit, stand, split, double, surrender
  • Instant feedback on decisions
  • Improve accuracy
  • Build faster decision-making
Read full description

Blackjack Strategy Trainer helps you learn blackjack the right way. Practice real blackjack decisions and improve your basic strategy through fast, focused training. Learn when to hit, stand, split, double, or surrender with instant feedback after every hand. Whether you are completely new to blackjack or want to sharpen your decision-making, this app helps you build confidence through repetition. Features: • Learn blackjack basic strategy • Practice realistic blackjack hands • Train hit, stand, split, double, and surrender decisions • Get instant feedback after every move • Improve your accuracy over time • Practice hard hands, soft hands, and pairs • Build faster decision-making • Simple, clean, focused training experience • No real-money gambling Blackjack is a game of decisions. This app helps you make better ones. Download Blackjack Strategy Trainer and start practicing today. Premium Subscription Info: Price: • 1-year subscription for $89.99 • Payment will be charged to your Apple ID account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours before the end of the current period, and the renewal cost will be shown. • You can manage or turn off auto-renew in your Apple ID account settings any time after purchase. • This price is for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on your country of residence. Privacy Policy: https://blackjacktraining.co/privacy-policy Terms of Use: https://blackjacktraining.co/terms

About

Blackjack Trainer

Master blackjack strategy with guided lessons, instant feedback, and simulated practice. This educational tutor helps build decision-making skills before playing in a casino. Learn fundamentals, practice scenarios, and track your progress with detailed analytics.

Highlights
  • Guided blackjack strategy lessons
  • Instant feedback on decisions
  • Simulated practice scenarios
  • Basic and advanced concept drills
  • Progress tracking and analytics
  • Configurable blackjack rules
Read full description

Learn blackjack strategy with guided lessons, scored drills, and a practice table that coaches every decision. COUNTR: Blackjack Trainer is an educational blackjack tutor: study the fundamentals, make one decision at a time, and get immediate feedback that explains the strategy behind each hand. LEARN STEP BY STEP • 11 interactive lessons on a step-by-step path, from what blackjack is to Hi-Lo counting concepts • Hard totals, soft hands, pairs, and reading the basic strategy chart • House edge, expected value, and index deviations explained • Short, hands-on practice at the end of every lesson PRACTICE AT A SIMULATED TABLE • Play simulated hands with configurable table rules and deck count • Every decision is graded against basic strategy • Miss a play and see the exact chart cell that shows the right one • Practice hits, stands, doubles, splits, surrender, and insurance scenarios DRILL UNTIL IT'S AUTOMATIC • 10 drills, including hand totals, Hi-Lo card values, running count, true count, pair cancellation, and deviations • Bronze, silver, and gold medals for accuracy and speed • Today's practice: three drills picked from your weakest skills, started with one tap FIX YOUR MISTAKES • Missed decisions come back as repairs that replay the exact hand • A strategy heatmap shows which hands you miss most • Track accuracy, streaks, and progress so you know what to revisit FOR EDUCATION ONLY The app does not connect to casinos, live tables, or gambling operators. It cannot place wagers, deposit or withdraw money, or provide real-time casino assistance. All cards, outcomes, and simulated results are generated for education and practice only and are not promises of winnings. SUBSCRIPTION COUNTR requires a subscription to access lessons, drills, practice, and review. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings. TERMS OF USE (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PRIVACY POLICY: https://getcountr.com/privacy-policy/

Screenshots

21 Trainer3 screens
Blackjack Trainer4 screens

Verdict

The call

The clearest difference is ads: Blackjack Trainer at none against 21 Trainer's shown. Blackjack Trainer also leads on rating (5.0 vs 4.7) and update cadence (fortnightly vs every 2 months). 21 Trainer's advantage is ratings volume (3 vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 21 Trainer sells 4 in-app purchases, starting at $8.99 per 7 days and Blackjack Trainer sells 6 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Blackjack Trainer holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

21 Trainer ships an update every 2 months, Blackjack Trainer fortnightly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
21 Trainer versus Blackjack Trainer: the parameters behind the verdict, then further details
Parameter21 TrainerBlackjack Trainer
PriceFreeFree
Rating4.7 (3 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings3 — better1
Update frequencyEvery 2 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size23 MB66 MB
Age rating17+17+
DeveloperLondon TechnologyFoxcraft LLC

Customer experience

21 Trainer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Blackjack Trainer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

21 Trainer

Subscriptions3
  • Blackjack Training PRO3 Days trial$8.997 Days
  • Blackjack Training PRO$44.991 Year
  • Blackjack Training PRO$89.991 Year
One-time1
  • Blackjack Training PRO$119.99
6 purchases

Blackjack Trainer

Subscriptions6
  • COUNTR+ Weekly$3.997 Days
  • COUNTR+ Monthly$9.991 Month
  • COUNTR+ Annual Exit Offer$24.991 Year
Show 3 more
  • COUNTR+ Annual1 Month trial$49.991 Year
  • Yearly$49.991 Year
  • COUNTR+ Annual7 Days trial$49.991 Year

Questions

Is 21 Trainer free?
21 Trainer is free to download, with in-app purchases available.
Is Blackjack Trainer free?
Blackjack Trainer is free to download, with in-app purchases available.
Which has better reviews, 21 Trainer or Blackjack Trainer?
Blackjack Trainer is rated higher. 21 Trainer averages 4.7 out of 5 from 3 ratings, while Blackjack Trainer averages 5.0 from 1 ratings.
Do 21 Trainer or Blackjack Trainer have ads?
21 Trainer shows ads; Blackjack Trainer does not.
Which is updated more often, 21 Trainer or Blackjack Trainer?
21 Trainer ships an update every 2 months, and Blackjack Trainer fortnightly. Most recently, 21 Trainer was updated on October 31, 2026 and Blackjack Trainer on November 6, 2026.

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