Best 21 Online Apps & Games

208+ iOS apps & games curated and reviewed

4.5 avg rating
19 free apps & games
Updated May 2026

The best 21 online apps on iPhone average 4.5★ across 208+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for 21 Online

C21 App#1

C21 App by Genioi

Editor's Choice
🌟 Lifestyle
3.7(3 ratings)
FreeAds
C21 App screenshot 1
C21 App screenshot 2
C21 App screenshot 3

Discover properties for sale or rent, and find real estate offices offering top services. Utilize advanced filters and map views to easily locate your ideal property.

Blackjack 21: Blackjackist#2

Blackjack 21: Blackjackist by WISE WAVE CORPORATION LIMITED

#1 Blackjack
Strong Contender
🎮 Games
4.7😞(133K ratings)
FreeAdsIn-App Purchases
#34in Games
Blackjack 21: Blackjackist screenshot 1
Blackjack 21: Blackjackist screenshot 2
Blackjack 21: Blackjackist screenshot 3
Blackjack 21: Blackjackist screenshot 4
Blackjack 21: Blackjackist screenshot 5
Blackjack 21: Blackjackist screenshot 6

Experience authentic, free-to-play blackjack with real-time multiplayer action and stunning 3D graphics. Improve your skills, compete in tournaments, and make side bets for bigger wins. Connect with players globally and customize your profile.

What We Love

  • 🚀 Smooth gameplay
  • 🎨 Excellent graphics
  • 💰 Generous free chip rewards
  • 🕹️ Variety of casino games

Room to Improve

  • 🎲 Questionable randomness in games
  • 🤖 Dealer advantage and rigged gameplay
  • 💸 Aggressive monetization tactics
Blackjack 21: Live Casino game#3

Blackjack 21: Live Casino game by Funstage GmbH

Play real online Black Jack 21
Worth Considering
🎮 Games
4.5(6.1K ratings)
FreeAdsIn-App Purchases
Blackjack 21: Live Casino game screenshot 1
Blackjack 21: Live Casino game screenshot 2
Blackjack 21: Live Casino game screenshot 3
Blackjack 21: Live Casino game screenshot 4
Blackjack 21: Live Casino game screenshot 5
Blackjack 21: Live Casino game screenshot 6

Experience the thrill of a live casino Blackjack game with real players and stunning graphics. Compete in tournaments, climb leaderboards, and explore glamorous virtual casinos worldwide. Enjoy free chips, side bets, and interactive chat.

More 21 Online apps to explore

4
Blackjack 21: online casino
Blackjack 21: online casino
Blackjack 21: online casino
Blackjack 21 & Slot machines
Free

Experience thrilling card gaming fun with this blackjack game. Master your skills, compete in global tournaments, and win daily rewards. Play anonymously or create a profile to showcase your achievements.

Global tournamentsDaily free chips and weekly rewardsPractice blackjack skills
🎮 Games
(145)
free with in-app purchases
5
Blackjack
Blackjack
Blackjack
Blackjack 21 - #1 Black jack
Free

Experience the thrill of a classic casino card game. Learn the rules, place bets, and aim for 21 to beat the dealer. Enjoy fair play with random cards and free chips to keep the fun going.

Classic Blackjack gameplayBetting and chip managementLearn to play Blackjack
🎮 Games
(306K)
free with in-app purchases
6
21 Blitz: Real Money Blackjack
21 Blitz: Real Money Blackjack
21 Blitz: Real Money Blackjack
Win Cash in Fun Skill Game
Free

This app combines Blackjack and Solitaire mechanics for a brain-training card game. Compete against others for free or real cash prizes, aiming to score points by making 21s or card stacks before time runs out. It offers head-to-head matches and multiplayer tournaments.

Mix of Blackjack and SolitaireMake 21s or stacks of 5 cardsCompete against real players
🎮 Games
(29K)
free with in-app purchases
7
Blackjack 21-World Tournament
Blackjack 21-World Tournament
Blackjack 21-World Tournament
by NEON Games CO.,LTD
Free

Experience competitive blackjack with multiple tournament modes, including head-to-head challenges and skill-honing free play. Earn bonuses and complete missions to climb the ranks and prove your card-playing prowess.

Tournament Mode with multiple levelsSpin & Go Mode for top chip holdersFree Bet Mode for practice and multiplayer
🎮 Games
(2K)
free with in-app purchases
8
BLACKJACK 21 - Casino Vegas
BLACKJACK 21 - Casino Vegas
BLACKJACK 21 - Casino Vegas
Enjoy Black Jack gambling game
Free

Experience the thrill of blackjack anytime, anywhere with this engaging card game. Bet virtually, hone your strategies, and enjoy casino-like graphics and sound effects without risking real money. Spin wheels and scratch tickets for bonus chips.

Play blackjack anywhere, anytimeBet without spending real moneyTest blackjack strategies and skills
🎮 Games
(1K)
free with in-app purchases
9
House of Blackjack 21
House of Blackjack 21
House of Blackjack 21
HOTTEST Blackjack Game
Free

Experience a realistic Las Vegas casino with various card games and slots. Master Blackjack 21 strategies, compete in tournaments, and collect cards for bonuses. Enjoy poker, slots, and video poker with friends.

Blackjack 21Texas Holdem PokerFree Slots
🎮 Games
(17K)
free with in-app purchases
10
MONOPOLY Solitaire: Card Games
MONOPOLY Solitaire: Card Games
MONOPOLY Solitaire: Card Games
Pass Go For Rewards Board Game
Free

Experience a unique blend of classic Solitaire and the beloved MONOPOLY board game. Play free card games, collect properties, and build your real estate empire to become a MONOPOLY millionaire. Strategize your way through endless solitaire levels and earn rewards.

Classic Solitaire gameplayMONOPOLY board game elementsProperty collection
🎮 Games
(76K)
free with in-app purchases
11
Blackjack 21!
Blackjack 21!
Blackjack 21!
Feeling lucky? Place your bet!
Free

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.

Free to playLas Vegas rulesHD graphics and table customization
🎮 Games
(6.1K)
free with in-app purchases
12
C21 Edge
C21 Edge
C21 Edge
CENTURY 21 Edge Concierge
Free

Manage your homeownership journey with this app. Track your home's value, search for new properties, collaborate with your agent on moves and maintenance, and stay informed about your transactions. Access listings and helpful resources all in one place.

Home value trackingMarket trend analysisHome search
🌟 Lifestyle
(4)
free
13
Blackjack 21 offline card game
Blackjack 21 offline card game
Blackjack 21 offline card game
real fun poker suits stars
Free

Experience the thrill of casino gambling with this free blackjack game. Place bets, aim for higher scores than the dealer, and win chips in an immersive atmosphere. Log in daily for bonus chips to keep the fun going.

Free to playDaily free chipsCasino atmosphere
🎮 Games
(39)
ad-supported
14
21 Jack - Blackjack Real Money
21 Jack - Blackjack Real Money
21 Jack - Blackjack Real Money
Win cash prizes playing online
Free

Engage in a competitive card game blending Blackjack and Solitaire mechanics. Test your skills against real players in fast-paced matches for a chance to win cash prizes. Enjoy instant payouts and strategic gameplay with no bots.

Win real cash prizesPlay against real opponentsInstant payouts
🎮 Games
(799)
free with in-app purchases
15
BlackJack by Murka: 21 Classic
BlackJack by Murka: 21 Classic
BlackJack by Murka: 21 Classic
Vegas Casino Card Game 21
Free

Experience the thrill of a classic casino card game. Aim to get as close to 21 as possible without exceeding it, outscoring the dealer to win chips. Learn and utilize various strategic moves like hit, stand, double, and split.

Play free Blackjack 21Score close to 21 without bustingLearn game terms: Hit, Stand, Double, Split
🎮 Games
(4K)
free with in-app purchases
16
FOX21 News | KXRM
FOX21 News | KXRM
FOX21 News | KXRM
by LIN Television Corporation
Free

Stay informed with local news and weather for southern Colorado. Access top stories from daily broadcasts, real-time developing news, and detailed weather forecasts with interactive radar.

Top local news storiesReal-time developing newsDetailed weather forecasts
📡 News
(1.4K)
ad-supported
17
Blackjack 21 Casino Game
Blackjack 21 Casino Game
Blackjack 21 Casino Game
by VAD service SIA
Free
🎮 Games
(0)
18
Poker Frenzy - Texas Holdem
Poker Frenzy - Texas Holdem
Poker Frenzy - Texas Holdem
Win Big in Texas Holdem Poker!
Free

Experience the thrill of Texas Hold'em poker with a chance to win big. Start with a massive free chip bonus, complete daily challenges, and compete in tournaments to climb the ranks and become a poker star. Enjoy fair play with certified algorithms and exclusive VIP benefits.

Free welcome bonus chipsDaily quests and challengesMulti-table tournaments
🎮 Games
(3.9K)
free with in-app purchases
19
Blackjack 21 Pro Multi-Hand
Blackjack 21 Pro Multi-Hand
Blackjack 21 Pro Multi-Hand
3 Hands (Vegas Casino Fun)
$2.99

This app offers a realistic Blackjack simulation with multiple hands and advanced features. Learn card counting, practice strategies, and play with friends in a virtual casino environment. It provides detailed stats and customizable rules for an authentic experience.

Play up to 12 hands at a timeInteractive learning modeMultiple card counting systems
🎮 Games
(82)
free with in-app purchases
20
TX Poker - Texas Holdem Online
TX Poker - Texas Holdem Online
TX Poker - Texas Holdem Online
Play Pro Poker Casino Game
Free

Experience realistic Texas Hold'em poker with high stakes and global competition. Engage in various tournament formats, including Dash Poker and Sit-N-Go, or try your luck at the Jackpot Slot. Earn free chips and connect with other players.

Texas Hold'em gameplaySit-N-Go tournamentsDash Poker for fast play
🎮 Games
(961)
free with in-app purchases

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