Comparison

Blackjack Trainer 101 vs 21 Trainer

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

Head to head
About

Blackjack Trainer 101

This app is a practice tool designed to help users learn and master basic strategy for the card game Blackjack. It offers various training modes and customization options to improve decision-making in different scenarios. While it doesn't simulate a full game, it focuses on teaching optimal play.

Highlights
  • Four learning modes (random, soft, pairs, custom)
  • Customizable house rules (decks, soft 17, doubling, surrender)
  • Skill levels for focused practice
  • Interactive strategy guide
  • Hint button for strategic analysis
  • Left/right-handed layouts
Read full description

Blackjack Trainer 101 is a basic strategy trainer. NOTE: This is *not* a Blackjack game, it is a practice aid for learning basic strategy in Blackjack, and it assumes you already are familiar with the basic rules of the game.  Using this app will *not* guarantee winning in real play, but it will help you play the best possible strategies in any situation. Features: • Four learning modes: random hands, soft hands, pairs, and a custom mode: choose any combination of hands to practice (requires paid upgrade). • Customize the house rules: number of decks in the shoe, hit vs. stand on soft 17, doubling rules and surrender • Skill levels: Higher levels concentrate your training on the harder-to-memorize hands • Strategy guide shows all the best moves and highlights the strategy for the current hand and dealer card • Hint button shows a strategic analysis of the current hand • Left-handed and right-handed playing layouts • Many different rule configurations (1-4 decks, dealer hits/stays on soft 17, double after split, early/late surrender)

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

Screenshots

Blackjack Trainer 1014 screens
21 Trainer3 screens

Verdict

The call

The clearest difference is ratings volume: Blackjack Trainer 101 at 6.9K against 21 Trainer's 2. Blackjack Trainer 101 also leads on rating (4.8 vs 4.5) and update cadence (every 3 weeks vs every 2 months). On price, ads, in-app purchases and monetization model 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 101 sells 1 one-off in-app purchase and 21 Trainer sells 4 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Blackjack Trainer 101 holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Blackjack Trainer 101 has 6.9K ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Blackjack Trainer 101 ships an update every 3 weeks, 21 Trainer every 2 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Blackjack Trainer 101 versus 21 Trainer: the parameters behind the verdict, then further details
ParameterBlackjack Trainer 10121 Trainer
PriceFreeFree
Rating4.8 (6.9K ratings) — better4.5 (2 ratings)
Positive reviews92.9% of reviews—
Number of ratings6.9K — better2
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS16.016.0
Further details — not scored
Size17 MB23 MB
Age rating17+17+
DeveloperDavid RichmondLondon Technology

Customer experience

Blackjack Trainer 101

All ratings6,766 ratings
Positive95.9%
Neutral2.8%
Negative1.2%
Written reviews169 reviews
Positive92.9%
Neutral2.4%
Negative4.7%

21 Trainer

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

Bugs and requests

Blackjack Trainer 101

Reported bugs

2 issues
  • Occasional crashes or performance issues
  • Discrepancies in basic strategy recommendations

Requested features

3 requests
  • Option to play out split hands
  • Ability to adjust volume
  • Inclusion of full hand history and dealer's final hand

21 Trainer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Blackjack Trainer 101

One-time1
  • BlackJack 101 Upgrade to Pro$2.99
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

Questions

Is Blackjack Trainer 101 free?
Blackjack Trainer 101 is free to download, with in-app purchases available.
Is 21 Trainer free?
21 Trainer is free to download, with in-app purchases available.
Which has better reviews, Blackjack Trainer 101 or 21 Trainer?
Blackjack Trainer 101 is rated higher. Blackjack Trainer 101 averages 4.8 out of 5 from 6.9K ratings, while 21 Trainer averages 4.5 from 2 ratings.
Do Blackjack Trainer 101 or 21 Trainer have ads?
Both Blackjack Trainer 101 and 21 Trainer show ads.
Which is updated more often, Blackjack Trainer 101 or 21 Trainer?
Blackjack Trainer 101 ships an update every 3 weeks, and 21 Trainer every 2 months. Most recently, Blackjack Trainer 101 was updated on October 27, 2026 and 21 Trainer on October 24, 2026.

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