Comparison

Blackjack 21 Multi vs Blackjack

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

Head to head
About

Blackjack 21 Multi

Practice Blackjack with a realistic casino simulator. Bet on multiple hands, learn card counting, and compete with friends. Features include career mode, customizable rules, and detailed stats.

Highlights
  • Bet up to 7 hands simultaneously
  • Interactive learning mode
  • Multiple card counting systems
  • Career mode with bank borrowing
  • Online multiplayer games
  • Customizable rules
  • Side-bet options
Features
Read full description

** The #1 BlackJack Simulator with more features than any other BlackJack game in the AppStore, and without the real-cash Freemium model. If you lose your virtual cash, just use the in-game ATM and get more. (No In-App purchase required!) ** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bet up to 7 hands at a time, and split them up to 3 times. (For 28 total hands!!!!) [3 on iPhone / 7 on iPad] This game has NO SILLY GIMMICKS, and is a true to life BlackJack simulator. The game engine behind this game has been used in live internet casinos and has been verified by the government it ran in. This is why many have called the iPhone version, not just another BlackJack game but a BlackJack Simulator. With an interactive learning mode, built-in bet cards, and many card counting systems you will learn to play BlackJack so you can win big when you visit a real casino. Features Include: * Play online multi-player games with up to 3 of your friend's via GameCenter. * Includes BlackJack Pass and Spanish 21 Game Rules * A career mode with a bank borrowing system to track your true net winnings. * Lots of stats including a full game log that you can E-Mail yourself to analyze how you can improve your game. * Customizable rules so you can tweak the game your local casino and play styles. * World-wide online leader boards so you can see how you compare to other BlackJack players (using GameCenter or the Plus+ network). * A multi-count information screen which shows you how all the count systems work. * Ability to leave the table or have CPU players play through the shoe, when the shoe is not in your favor. * Continuous Shuffle Machine (CSM) option, to simulate today's modern casinos. * Over 10 Side-Bets such as Perfect Pairs, Match The Dealer, and more. * A Cheat/Practice mode which allows you to try new game styles by peeking at the dealer's hole card as well as the shoe, and not effecting your career mode data. * 40+ achievements/awards to unlock, ranging from simple to diabolical, you won’t want to stop playing until you reach them all. * Many card counting systems (including Red-7) to help you learn to count utilizing the True Count as well as a Count Action Card. * A built-in help guide teaching you the rules of BlackJack as well as how to count cards. (In Help & Support) * Fluid animation, lots of sound effects including an interactive dealer, and finger gestures mimicking real life casino hand motions. * Optional CPU players to play alongside you. * Free alternative downloadable sound packs (such as a Male Dealer Voice). =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- WHAT OTHERS ARE SAYING: "This app is as serious as it gets, with minute control over every aspect." -- Wired Magazine App Guide 2012 (BlackJack Sim 21 Pro Review) ".....Blackjack 3-hand edition is “the” blackjack game for the iphone or ipod touch ...." - iphone-journal.com "Overall this game packs so much, that I am surprised it’s on a portable device. .... This game is a must-have for any true BlackJack fan." - AppStoreBest.com [5/5 Stars] =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- X/Tweet Us: http://x.com/PepperDogSoft If you are experiencing problems please use the Support forum on our website (www.PepperDogSoft.com) as we can better help you there.

About

Blackjack

This app simulates countless blackjack hands to analyze strategy performance, helping users understand counting strategies and their outcomes. It offers detailed statistics, customizable rules, and error analysis for skill refinement.

Highlights
  • Fast hand simulations (up to 100,000/sec)
  • Detailed statistics tracking (gains, edge, risk of ruin)
  • Customizable strategies (HILO, KO, REKO, custom)
  • Flexible table rule settings
  • Player error impact analysis
  • Real-time performance monitoring
  • Save and compare simulation results
Features
Currently charting
Read full description

The blackjack simulator is designed for both enthusiasts and professionals. It allows you to simulate up to 100,000 hands per second (iPhone 15 & iPad 10th generation) while recording detailed data to help you analyze the strategy performance, to help you improve your understanding of counting strategies and their expected outcomes. Key Features: Fast Simulations: Thorough analysis and strategy testing with up to 100,000 hands per second. Comprehensive Data Tracking: Calculate your gains, hourly rate, edge, and risk of ruin, and much more with detailed statistics. Customizable Strategies: Choose from preset strategies like Basic, HILO, KO, OK, REKO, FELT, or 3 custom. All strategies can be customized -- card count values, insurance indexes, deviation indexes, basic strategy action, and betting ramp. Flexible Table Rules: Select from various table rules such as hard 17, soft 17, double after split, and penetration to simulate real casino conditions. Error Analysis: Understand the impact of player errors on basic strategy, deviations, and betting to refine your gameplay. Live Updates: Monitor real-time updates on gains, hourly rate, edge, and risk of ruin as the simulation runs. Detailed Statistics: Dive into your performance with stats on bankroll, decision making (hits, stands, etc.), hands won and lost, true count outcomes, and much more. Save & Compare: Save your simulation results to review later and compare different strategies and table rules. Use our blackjack simulator to refine your skills, test strategies, and gain a better understanding of the game. More Details: Strategy presets: HILO, KO, OK, FELT, REKO, and 3 Customs. Supports balanced or unbalanced strategies. User can modify initial running count, card count values, insurance indexes, hard 17 and soft 17 indexes, and betting ramp. Table/Simulator settings: Hard or soft 17, Surrender, Double after split, Resplitting aces, ENHC, Number of decks, Penetration, Blackjack payout, Number of players, Use deviations, Hands per hour, Initial bankroll, Mistake frequencies (basic strategy, deviations, bets).

Screenshots

Blackjack 21 Multi4 screens
Blackjack4 screens

Verdict

The call

The clearest difference is rating: Blackjack 21 Multi at 4.8 against Blackjack's 3.0. Blackjack 21 Multi also leads on ratings volume (58 vs 2) and price ($5.99 vs $9.99). Blackjack's advantage is in-app purchases (none vs 6) and update cadence (every 6 days vs monthly). On ads, chart position 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

Blackjack 21 Multi costs $5.99 and Blackjack $9.99 up front. Blackjack 21 Multi sells 6 one-off in-app purchases. Blackjack asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Blackjack 21 Multi holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: Blackjack 21 Multi has 58 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Blackjack 21 Multi ships an update monthly, Blackjack every 6 days. Both last shipped on October 21, 2026.

Scorecard7 real differences · 4 level
Blackjack 21 Multi versus Blackjack: the parameters behind the verdict, then further details
ParameterBlackjack 21 MultiBlackjack
Price$5.99 — better$9.99
Rating4.8 (58 ratings) — better3.0 (2 ratings)
Positive reviews87.2% of reviews—
Number of ratings58 — better2
Update frequencyMonthlyEvery 6 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#57 — better#138
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS9.0 — better16.0
Further details — not scored
Size46 MB40 MB
Age rating17+17+
DeveloperPepper Dog Soft LLCDouble Down Software

Customer experience

Blackjack 21 Multi

All ratings59 ratings
Positive94.9%
Neutral3.4%
Negative1.7%
Written reviews117 reviews
Positive87.2%
Neutral5.1%
Negative7.7%

Blackjack

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Blackjack 21 Multi

Reported bugs

8 issues
  • App freezes when accessing options menu
  • Display scaling issues on iPod Touch 6
  • Navigation buttons off-screen on some devices
  • Crashes during multiplayer setup
  • Hand totals sometimes change before new cards dealt
Show 3 more
  • Delay in insurance option response
  • Stability issues on iPad (now reportedly fixed)
  • Game becomes unstable after extended play sessions

Requested features

15 requests
  • Higher table betting limits (up to $1,100,000+)
  • Easier bet management (auto-repeat same bet after wins)
  • Background casino music and ambient sounds
  • Multiple local player support on iPad
  • Different dealer voices and accents
Show 10 more
  • Trainer mode for basic strategy with feedback
  • Continuous bank refinancing without ATM trips
  • More card design variations and table felt colors
  • European No Hole Card Rule option
  • Adjustable CPU player speed
  • Faulty basic strategy CPU players for practice
  • Strategy explanations for recommended moves
  • Separate player accounts/profiles
  • One-step reshuffle/table change option
  • Slower dealing animation for card counting practice

Blackjack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Blackjack 21 Multi

One-time6
  • Bet Card Editor$0.99
  • Count System Editor$0.99
  • Action Card Editor$0.99
Show 3 more
  • BlackJack Pass Game Type$1.99
  • Spanish 21 Game Type$1.99
  • Super 31$1.99
None

Blackjack

No in-app purchases

Questions

Is Blackjack 21 Multi free?
Blackjack 21 Multi costs $5.99, and also offers in-app purchases.
Is Blackjack free?
Blackjack costs $9.99, with no in-app purchases.
Which has better reviews, Blackjack 21 Multi or Blackjack?
Blackjack 21 Multi is rated higher. Blackjack 21 Multi averages 4.8 out of 5 from 58 ratings, while Blackjack averages 3.0 from 2 ratings.
Do Blackjack 21 Multi or Blackjack have ads?
Neither Blackjack 21 Multi nor Blackjack shows ads.
Which is updated more often, Blackjack 21 Multi or Blackjack?
Blackjack 21 Multi ships an update monthly, and Blackjack every 6 days. Most recently, Blackjack 21 Multi was updated on October 21, 2026 and Blackjack on October 21, 2026.
Which is more popular, Blackjack 21 Multi or Blackjack?
Blackjack 21 Multi currently peaks at #57 in the App Store charts, and Blackjack at #138. Chart position reflects recent download velocity rather than total install base.

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