21 Pro vs Card Counter
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
21 Pro
Experience the thrill of Blackjack 21 on your mobile device. Play multiple hands simultaneously, aim for the progressive jackpot with a Triple 777's hand, and learn strategies with free lessons. Customize your game and track your progress with in-depth stats.
- Play multiple hands
- Win progressive jackpot
- Free lessons and tips
- Customize cards and table
- In-depth stats
- Players Club rewards
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Shuffle up and deal! It’s time to take it to the house with 21 Pro: Blackjack! Play and enjoy the authentic experience today! Win the progressive jackpot with a Triple 777's hand. Get our app and start a Blackjack 21 hot streak now! - Win the PROGRESSIVE Jackpot! - Play multiple hands at once with our multi-hand option! - Set the table limits for high stakes action & reload anytime you need chips! - Become a pro with FREE lessons and tips! - Ask the dealer for advice and improve! - Customize your cards and table for the! perfect Vegas casino setting! - In-depth stats to help you track your progress! - Players Club: Earn rewards and bonuses with every hand you play! The Fun Vegas Casino Experience on the go! Don't forget to check our Slots, Slot Machine and other casino apps, including blackjack, roulette, craps and poker.
Card Counter
Master Blackjack card counting with this engaging game. Learn various counting systems and practice through multiple difficulty levels. Track your progress with high scores and global leaderboards.
- Learn Blackjack card counting techniques
- Supports multiple counting systems (Hi-Lo, KISS, etc.)
- Customizable counting systems
- Multiple game modes (Easy to Expert)
- High score tracking and global leaderboards
- Universal iPhone and iPad support
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FEATURED BY ENGADGET, LA TIMES, and TECH CRUNCH. PLAY THE GAME THAT CASINOS DON'T WANT YOU TO KNOW ABOUT! Card Counter is an exciting game based on real Blackjack card counting techniques. You love Blackjack and know what to do in every hand, but now you want more! Maybe you saw the movie "21", read the book "Bringing Down the House", or just heard about card counting. Card Counter will teach you everything you need to know without having to enroll at MIT. Customer Reviews: "Made me 50k in vegas. Not kidding" "I have been learning the basics of card counting and after tying this I learned faster in ten minutes than I did in a week" "Just got back from Vegas and won 8G's and took my family on a great vacation. 3 bucks is worth a thousand" PRESS QUOTES: LA Times: "Looking for a quick way recoup some of your economic losses?" Tech Crunch: "Las Vegas casino owners, and their well wishers, have been tipped off to the app’s existence, which, theoretically, makes winning blackjack easier." Top Rated by AppAdvice as an "Essential App" that "stands above all others in this category of apps" PRO FEATURES * Fun and exciting game based on real Blackjack card counting techniques. * Pick the Card Counting system you want to learn by selecting Hi-Lo, Hi-Opt I, Hi-Opt II, KISS III, KO, Omega II, Red 7, Silver Fox, and Zen Count, or add your own counting system by specifying the card count values and starting count. * Tutorial, Easy, Medium, Hard, Medium, Expert, and Challenge game modes for fine tuning your skills * High scores for tracking your progress with world wide rankings with Game Center leaderboards and achievements * Universal iPhone and iPad app game with beautiful Retina HD graphics. * Voice over by Oscar Santana from Big O & Dukes and Mike O'Meara show Learn everything you need to know on a plane to Las Vegas, a car ride to Atlantic City, or in the comforts of your own home. Study. Practice. Win. ----------------------------------------------- IMPORTANT INFORMATION: Card Counter is a video game based on the techniques of card counting. Using any device while at Blackjack tables is illegal. Never play Card Counter or use any electronic device while playing at casino tables. ----------------------------------------------- ARTICLE LINKS: Tech Crunch: https://techcrunch.com/2009/02/16/iphone-card-counting-app-comes-under-las-vegas-scrutiny/ LA Times: http://latimesblogs.latimes.com/technology/2009/02/card-counter.html AppAdvice Article: https://appadvice.com/appguides/show/card-counting
Screenshots
Verdict
The clearest difference is price: 21 Pro at Free against Card Counter's $2.99. 21 Pro also leads on update cadence (every 2 weeks vs every 4 months) and ratings volume (677 vs 113). Card Counter's advantage is in-app purchases (none vs 7) and review sentiment (88% vs 72%). On rating, ads 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
21 Pro is free to download; Card Counter costs $2.99 up front. 21 Pro sells 7 one-off in-app purchases. Card Counter asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for 21 Pro against 4.7 for Card Counter. That said, the two scores are not equally well evidenced: 21 Pro has 677 ratings behind it against 113, so its average is the more settled of the two. Written reviews are what separate them: 72% of 21 Pro's written reviews are positive against 88% of Card Counter's.
21 Pro ships an update every 2 weeks, Card Counter every 4 months. Both last shipped on November 6, 2026.
| Parameter | 21 Pro | Card Counter |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.7 (677 ratings) — better | 4.7 (113 ratings) |
| Positive reviews | 71.9% of reviews | 87.9% of reviews — better |
| Number of ratings | 677 — better | 113 |
| Update frequency | Every 2 weeks — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #37 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 85 MB | 39 MB |
| Age rating | 17+ | 4+ |
| Developer | Avalinx LLC | TMSOFT |
Customer experience
21 Pro
Card Counter
User reviews
21 Pro
From 677 App Store ratingsWhat we love
- 🎮 Realistic gameplay
- 💰 Generous daily bonus
- 🎨 Appealing graphics
- 🕹️ Smooth offline play
- 🕹️ Ability to play multiple hands
Room to improve
- 🎲 Dealer-favored odds
- 🤖 Unrealistic dealer behavior
- 🙄 Excessive ads
- 🔌 Requires internet connection
- 🤑 Difficult to build bankroll
Card Counter
From 113 App Store ratingsWhat we love
- 🎯 Effective card counting training across multiple difficulty levels
- 🎨 Customizable counting systems with ability to create personal methods
- ⚡ Progressive difficulty scaling from easy to expert
- 🎮 Engaging gamification with scoring and monetary rewards
- 📚 Comprehensive study guide and educational content
Room to improve
- 🐛 App freezes and crashes occasionally
- 🎚️ Count input slider lacks sensitivity and accuracy
- ⚠️ Count range limited to +/- 52 in challenge mode
- 🎴 Card display stacking obscures visibility
- ⏱️ Large difficulty jump between medium and hard levels
Bugs and requests
21 Pro
Reported bugs
3 issues- Frequent crashes
- Connectivity issues
- Incorrect strategy advice
Requested features
5 requests- Larger chip denominations
- Offline daily bonus
- More customization options
- Multiplayer mode
- Improved card counting tools
Card Counter
Reported bugs
8 issues- App locks up and loses count accuracy
- Count input slider sometimes registers wrong numbers despite correct input
- Inconsistent feedback between voice and text responses
- Leaderboard fails to register updated high scores
- Small buttons near bottom of screen cause accidental navigation away from game
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- Count range caps at +/- 52 causing forfeits in challenge mode with advanced systems
- App occasionally freezes during gameplay
- Voice feedback contradicts text feedback on incorrect counts
Requested features
14 requests- Integrated blackjack game with real betting and counting practice
- Basic strategy training module
- True count conversion practice drills
- Free-play card counting mode without scoring pressure
- Speed control slider for progressive difficulty adjustment
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- Additional difficulty level between medium and hard
- Support for fractional counting systems (Halves, etc.)
- Realistic casino sounds and distractions
- Multiple hand blackjack simulation (2-6 decks)
- Ability to practice specific card throw patterns
- Larger, more responsive count input buttons
- Real blackjack table card angle simulation
- Level above expert with increased challenge
- Customizable card display angles and perspectives
In-app purchases
21 Pro
- Get a pack of Coins Tier 1$2.99
- Remove Advertising$3.99
- Get a pack of Coins Tier 2$7.99
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- Get a pack of Coins Tier 3$9.99
- Get a pack of Coins Tier 4$14.99
- Get a pack of Coins Tier 5$19.99
- Get a pack of Coins Tier 6$49.99
Card Counter
No in-app purchases
Questions
Is 21 Pro free?
Is Card Counter free?
Which has better reviews, 21 Pro or Card Counter?
Do 21 Pro or Card Counter have ads?
Which is updated more often, 21 Pro or Card Counter?
Other comparisons
