Best 21 Online Apps & Games

202+ iOS apps & games curated and reviewed

4.5 avg rating
20 free apps & games
Updated July 2026

The best 21 online apps and games on iPhone average 4.5★ across 202+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Compare top 21 Online Apps & Games (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1C21 AppC21 AppFree3.7★ (3)YesNoMay 2026
2Blackjack 21: BlackjackistBlackjack 21: BlackjackistFree4.7★ (135K)YesYesAug 2026
3Blackjack 21: Live Casino gameBlackjack 21: Live Casino gameFree4.5★ (6.2K)YesYesAug 2026
4BlackjackBlackjackFree4.7★ (317K)YesYesAug 2026
5Blackjack 21: online casinoBlackjack 21: online casinoFree4.6★ (146)YesYesAug 2026
6BlackJack by Murka: 21 ClassicBlackJack by Murka: 21 ClassicFree4.7★ (4.1K)YesYesAug 2026
7House of Blackjack 21House of Blackjack 21Free4.4★ (17K)YesYesAug 2026
821 Blitz: Real Money Blackjack21 Blitz: Real Money BlackjackFree4.6★ (30K)YesNoAug 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😞(135K ratings)
FreeAdsIn-App Purchases
#31in 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(6.2K 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
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
(317K)
free with in-app purchases
5
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
(146)
free with in-app purchases
6
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
(4.1K)
free with in-app purchases
7
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
8
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
(30K)
free with in-app purchases
9
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
10
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
(2.1K)
free with in-app purchases
11
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
12
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
13
Blackjack 21: Octro Black jack
Blackjack 21: Octro Black jack
Blackjack 21: Octro Black jack
Blackjack Online Casino Games
Free

Experience the thrill of a 3D casino card game where you aim to beat the dealer by reaching 21. Improve your skills with tutorials, complete quests for rewards, and chat with other players. Enjoy realistic graphics and fair play.

3D graphicsDaily free chips and rewardsQuests and achievements
🎮 Games
(1.3K)
free with in-app purchases
14
Garage: Online Fashion
Garage: Online Fashion
Garage: Online Fashion
Shop Trends & Earn Rewards
Free

Shop the latest women's fashion trends with a redesigned, fast, and seamless app experience. Discover exclusive deals, earn loyalty rewards, and get early access to new collections. Build wishlists and track orders easily.

Shop latest women's fashion trendsExclusive app-only dealsEarn loyalty points and rewards
🛍️ Shopping
(34K)
free with in-app purchases
15
21 Cash
21 Cash
21 Cash
Skill-based Blitz Card Game
Free

This skill-based card game offers exciting challenges and the chance to win real cash prizes. Compete against players of similar skill levels with identical card decks, aiming to score by stacking cards to reach 21. Enjoy smooth gameplay, daily bonuses, and secure withdrawals.

Win real-money tournamentsSecure withdrawals (PayPal, Apple Pay)No distracting ads
🎮 Games
(19K)
free with in-app purchases
16
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
(798)
free with in-app purchases
17
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
18
21 Buttons: Fashion Network
21 Buttons: Fashion Network
21 Buttons: Fashion Network
Buy Influencer Style Clothing
Free

Discover and shop influencer-inspired fashion. Follow style leaders, find trendy outfits, and purchase items directly from online shops. Organize your favorite looks and share your own style with the community.

Discover influencer stylesShop clothing in one clickSave looks to custom closets
🌐 Social Networking
(400)
free with in-app purchases
19
Hard Rock Blackjack & Casino
Hard Rock Blackjack & Casino
Hard Rock Blackjack & Casino
21, Poker & Vegas Table Games
Free

Experience a free-to-play online casino with 3D table games like blackjack and poker, slots, and sports betting. Compete in tournaments, complete quests, and earn rewards without risking real money. Connect with friends and unlock themed albums for an enhanced gaming experience.

3D table games (blackjack, poker, roulette, craps, baccarat)Slots and sports bettingPlay with friends and in-game chat
🎮 Games
(13K)
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
(983)
free with in-app purchases

FAQ about 21 Online

What are the best 21 online apps & games for iPhone?
C21 App tops our 21 online apps & games ranking as of July 2026, with a 3.7-star average from 3 App Store ratings, and it's free to download.
Yes — 20 of the top 21 online apps & games we rank are free to download, including C21 App and Blackjack 21: Blackjackist.
C21 App shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 202+ 21 online apps & games on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
C21 App allows you to find properties for purchase or rent. You can also locate real estate offices that provide various services.
C21 App offers advanced filters to narrow down your search and a map view to visually explore available properties and offices.

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