Comparison

Black Jack vs Blackjack 21!

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

Head to head
About

Black Jack

Experience the classic casino card game of twenty-one. Play against the dealer, aiming to reach 21 without busting. Features include insurance and special hands like "Straight Flush" and "Five Dragon".

Highlights
  • Classic Blackjack gameplay
  • Insurance option
  • "Straight Flush" hand
  • "Five Dragon" hand
  • Single-player vs. dealer
Features
Read full description

Black Jack - Daily 21 points, supports Insurance, "Straight Flush" and "Five Dragon" inside. Blackjack, also known as twenty-one, is the most widely played casino banking game in the world.[1] Blackjack is a comparing card game between a player and dealer and played with one or more decks of 52 cards. The player or players are dealt an initial two card hand and add the total of their cards. Face cards (Kings, Queens, and Jacks) are counted as ten points. The player and dealer can count their own Ace as 1-point or 11 points. All other cards are counted as the numeric value shown on the card. After receiving their initial two cards, players have the option of getting a "hit" (taking additional cards) to bring their total value of cards to 21 points, or as close as possible without exceeding 21 (called "busting"). If a player holds an ace valued as 11, the hand is called "soft", meaning that the player cannot go bust by taking an additional card; otherwise, the hand is "hard". The dealer has to take hits until his cards total 17 or more points. (In some casinos, the dealer also hits on a "soft" 17, e.g. initial ace and six.) Players who do not bust and have a total higher than the dealer, win. The dealer will lose if he or she busts, or has a lesser hand than the player who has not busted. If the player and dealer have the same point total, this is called a "push" and the player typically doesn't win or lose money on that hand. Many rule variations of blackjack exist. Since the 1960's, blackjack has been a high profile target of advantage players, particularly card counters, who track the profile of cards that have been dealt and adapt their wager and playing strategies accordingly. Other casino games inspired by blackjack include Spanish 21 and pontoon. The recreational British card game of black jack is a shedding-type game and unrelated to the subject of this article.

About

Blackjack 21!

Experience the thrill of Blackjack with this free casino-style card game. Enjoy authentic Las Vegas rules, customizable tables, and detailed stat tracking. Learn to play with helpful hints and master the game with advanced options like Double Down and Splits.

Highlights
  • Free to play
  • Las Vegas rules
  • HD graphics and table customization
  • Stat tracking
  • Double Down, Splits, Insurance, Surrender
  • Deck shuffle animation
  • Customizable options
Features
Read full description

Do you love Blackjack? Play the best FREE Blackjack game on the app store! - Jump right in and play Blackjack completely free! - Popular Las Vegas rules just like at the casino. - Beautiful table customizations with HD graphics. - Easy, simple to learn controls make this the sleekest Blackjack available. - Stat tracking shows your performance over time. - Double Down, Splits, Insurance and Surrender for an authentic Blackjack experience. - Deck shuffle animation lets you know when the deck is being reshuffled. - Tons of chip denominations from singles all the way to millions! - Customization options including decks, tables, face card style, hints, music, sfx, surrender. - Informative help screen for those who don't already know how to play Blackjack. The current game has hints enabled by default. This will highlight the suggested move based on basic Blackjack strategy. If you want to turn this off, toggle the "Move Advice" setting in the menu. We'll be adding some awesome new features to Blackjack soon, so stay tuned! Thanks for playing!! For fast and friendly support, email us at contact@maplemedia.io. We would love to hear from you!

Screenshots

Black Jack3 screens
Blackjack 21!4 screens

Verdict

The call

The clearest difference is rating: Blackjack 21! at 4.6 against Black Jack's 3.8. Blackjack 21! also leads on ratings volume (6.1K vs 4) and update cadence (every 3 months vs every 18 months). Black Jack's advantage is ads (none vs shown) and iOS requirement (10.0 vs 15.0). 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. Black Jack sells 10 one-off in-app purchases and Blackjack 21! sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Blackjack 21! holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Blackjack 21! has 6.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 61% of Black Jack's written reviews are positive against 72% of Blackjack 21!'s.

UpkeepUpdate frequency

Black Jack ships an update every 18 months, Blackjack 21! every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
Black Jack versus Blackjack 21!: the parameters behind the verdict, then further details
ParameterBlack JackBlackjack 21!
PriceFreeFree
Rating3.8 (4 ratings)4.6 (6.1K ratings) — better
Positive reviews60.9% of reviews71.7% of reviews — better
Number of ratings46.1K — better
Update frequencyEvery 18 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better15.0
Further details — not scored
Size30 MB209 MB
Age rating17+17+
DeveloperCronlyGames Inc.Do More Mobile, LLC.

Customer experience

Black Jack

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews23 reviews
Positive60.9%
Neutral21.7%
Negative17.4%

Blackjack 21!

All ratings6,085 ratings
Positive88.7%
Neutral6.4%
Negative4.9%
Written reviews127 reviews
Positive71.7%
Neutral7.1%
Negative21.3%

Bugs and requests

Black Jack

Not enough reviews yet to summarise bugs or requests.

Blackjack 21!

Reported bugs

4 issues
  • Crashes after updates
  • Inability to close some ads
  • Incorrect payout for split hands
  • Disappearing chip balances

Requested features

5 requests
  • Multiple deck support
  • Option to walk away after winning
  • Multiplayer mode
  • More betting options
  • Improved card draw randomization

In-app purchases

10 purchases

Black Jack

One-time10
  • ChipSet 0$0.99
  • Hall ChipSet 0$0.99
  • ChipSet 1$1.99
Show 7 more
  • ChipSet 2$4.99
  • Hall ChipSet 1$4.99
  • ChipSet 3$8.99
  • Hall ChipSet 2$9.99
  • ChipSet 4$17.99
  • Hall ChipSet 3$19.99
  • Hall ChipSet 4$49.99
5 purchases

Blackjack 21!

One-time5
  • Blackjack 21 - 35,000 Chips$4.99
  • Black Jack Premium Upgrade$6.99
  • Blackjack 21 - 100,000 Chips$9.99
Show 2 more
  • Blackjack 21 - 250,000 Chips$19.99
  • Blackjack 21 - 600,000 chips!$39.99

Questions

Is Black Jack free?
Black Jack is free to download, with in-app purchases available.
Is Blackjack 21! free?
Blackjack 21! is free to download, with in-app purchases available.
Which has better reviews, Black Jack or Blackjack 21!?
Blackjack 21! is rated higher. Black Jack averages 3.8 out of 5 from 4 ratings, while Blackjack 21! averages 4.6 from 6.1K ratings.
Do Black Jack or Blackjack 21! have ads?
Blackjack 21! shows ads; Black Jack does not.
Which is updated more often, Black Jack or Blackjack 21!?
Black Jack ships an update every 18 months, and Blackjack 21! every 3 months. Most recently, Black Jack was updated on November 1, 2026 and Blackjack 21! on November 6, 2026.

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