Comparison

SpeedJack 21 vs Blackjack Trainer

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

Head to head
About

SpeedJack 21

Practice your blackjack basic strategy with this educational app. Achieve consecutive correct answers to rank your time record on the server and improve your casino winning average.

Highlights
  • Blackjack basic strategy practice
  • Consecutive correct answer challenge
  • Server-based time ranking
  • Improve casino winning average
  • User sign-in required for challenges
Features
Read full description

It is an application which helps your blackjack skill. You can practice basic strategy of blackjack with this application. If you succeed 20 times consecutive correct answer, your time record spent will be ranked on the server. Please sign-in before challenge. If you can pass this challenge easily without failing in short time, your winning average at the casino will be increasing.

About

Blackjack Trainer

Master blackjack strategy with this trainer. Learn optimal plays for any table rules, practice card counting, and improve your decision-making through interactive drills and instant feedback. Track your progress and build consistent habits for better gameplay.

Highlights
  • Adaptive basic strategy charts
  • Hi-Lo card counting drills
  • Instant feedback and explanations
  • Progress tracking and mastery heatmap
  • Offline practice mode
  • Daily habit building features
Features
Read full description

Blackjack Trainer is a blackjack strategy trainer: learn the basic strategy chart for your table rules, then train Hi-Lo card counting. Every decision is graded, explained in plain English, and drilled until it sticks. Every recommendation is basic strategy, the mathematically optimal play for each hand, verified against a reference expected-value engine, not gut feel or folklore. Play practice hands at a first-person table, get instant feedback the moment you act, and learn exactly why a play is right or wrong. WHAT IS BASIC STRATEGY? Basic strategy is the set of optimal decisions for every blackjack hand: when to hit, stand, double down, split or surrender against each dealer upcard. It can't guarantee any single hand, but it is the strongest way to play, and this app makes it second nature through repetition and clear explanations. A STRATEGY CHART FOR YOUR TABLE RULES Correct strategy changes with the rules, and the app adapts: - Dealer hits or stands on soft 17 (H17 / S17) - 1, 2, 4, 6 or 8 decks - Late surrender offered or not Change any of these in Settings and every recommendation and the full chart update to match. The charts assume double after split is allowed. LEARN BY PLAYING - A living practice table with a dealer and a real deck of cards - Instant feedback on every hit, stand, double, split and surrender, with the reason in plain English - "Remember" cards that teach the pattern behind a decision, not just the answer - The full basic strategy chart (blackjack cheat sheet): hard totals, soft totals and pairs, color-coded - Lessons and drill packs built from your own mistakes and lowest-mastery hands - Progress: an accuracy ring, a trend line and a mastery heatmap across every hand and dealer upcard BUILD A HABIT - Daily: ten hands, the same for everyone, one attempt a day - A day streak that allows one rest day a week - A 14-day path through every lesson and drill pack - Your trickiest hand deals first when you return - Optional reminders, off until you turn them on - Share cards for your streak and progress HI-LO COUNT AND SPEED MATH The Count tab trains the Hi-Lo running count and the true count conversion on cards the app deals, with three drills: card by card, a timed deck countdown, and true count conversion. It is skill practice, like a chess tactics trainer, with no way to enter cards from a real table. Speed Math builds quick mental arithmetic: add up a hand before the timer runs out. EDUCATION, NOT GAMBLING This is a study tool, not a gambling app. There is no real money and no virtual currency. There are no chips, no bets, no bankroll, and no payouts: nothing is staked, and nothing is won or lost. You practice decisions and the app grades them, the way a chess tactics trainer grades moves. PRIVATE BY DESIGN Practice works offline. There's no account and no sign-up. Your progress is stored only on your device. Only an optional Pro purchase goes online, confirmed through Apple and RevenueCat under a random anonymous ID, never your name or email. There are no ads, no analytics, and no third-party tracking of any kind. BLACKJACK TRAINER PRO Every lesson, the strategy chart, the counting drills and the Daily challenge come with the app, along with 10 practice hands a day. Pro adds unlimited practice and the advanced study tools: index plays (the Illustrious 18 and Fab 4 deviations), Shoe Lab, decision math and the Daily archive. Pro comes as a yearly plan or a Lifetime unlock. The yearly plan renews automatically until you cancel it in your Apple Account settings. Strategy guides and printable charts: https://blackjack-trainer-coach.vercel.app/ Terms of Use: https://blackjack-trainer-coach.vercel.app/terms.html Privacy Policy: https://blackjack-trainer-coach.vercel.app/privacy.html

Screenshots

Blackjack Trainer4 screens

Verdict

The call

The clearest difference is in-app purchases: SpeedJack 21 at none against Blackjack Trainer's 4. SpeedJack 21 also leads on iOS requirement (13.0 vs 16.4). Blackjack Trainer's advantage is ads (none vs shown) and ratings volume (5 vs 1). On price, rating, update cadence 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. Blackjack Trainer sells 4 in-app purchases, starting at $9.99 per year. SpeedJack 21 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for SpeedJack 21 against 5.0 for Blackjack Trainer. That said, the two scores are not equally well evidenced: Blackjack Trainer has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

SpeedJack 21 ships an update fortnightly, Blackjack Trainer every 2 weeks. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

Scorecard5 real differences · 5 level
SpeedJack 21 versus Blackjack Trainer: the parameters behind the verdict, then further details
ParameterSpeedJack 21Blackjack Trainer
PriceFreeFree
Rating5.0 (1 ratings)5.0 (5 ratings)
Positive reviews—100.0% of reviews
Number of ratings15 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better16.4
Further details — not scored
Size86 MB55 MB
Age rating12+17+
DeveloperKwangRim AhnAppana Ventures LLC

Customer experience

SpeedJack 21

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Blackjack Trainer

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

SpeedJack 21

No in-app purchases

4 purchases

Blackjack Trainer

Subscriptions2
  • Pro Yearly7 Days trial$9.991 Year
  • Pro Yearly7 Days trial$19.991 Year
One-time2
  • Pro Lifetime$29.99
  • Pro Lifetime$59.99

Questions

Is SpeedJack 21 free?
SpeedJack 21 is free to download, with no in-app purchases.
Is Blackjack Trainer free?
Blackjack Trainer is free to download, with in-app purchases available.
Which has better reviews, SpeedJack 21 or Blackjack Trainer?
SpeedJack 21 and Blackjack Trainer are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.
Do SpeedJack 21 or Blackjack Trainer have ads?
SpeedJack 21 shows ads; Blackjack Trainer does not.
Which is updated more often, SpeedJack 21 or Blackjack Trainer?
SpeedJack 21 ships an update fortnightly, and Blackjack Trainer every 2 weeks. Most recently, SpeedJack 21 was updated on November 3, 2026 and Blackjack Trainer on November 10, 2026.

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