245+ iOS apps & games curated and reviewed
With an average user rating of 3.9★, the card adder 21 category is one of the App Store's strongest. Browse all 245+ apps and games we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (1) | No | Yes | Jul 2026 |
| 2 |  | Free | 3.4★ (20) | No | No | May 2026 |
| 3 |  | Free | 4.8★ (56K) | No | No | Aug 2026 |
| 4 |  | Free | 3.6★ (5) | No | Yes | Jul 2026 |
| 5 |  | Free | 4.0★ (12K) | No | No | Aug 2026 |
| 6 |  | Free | 5.0★ (9) | No | Yes | Aug 2026 |
| 7 |  | Free | 3.0★ (2) | No | Yes | Aug 2026 |
| 8 |  | Free | 4.5★ (4) | Yes | No | Aug 2026 |
Enhance your mental math skills by tracking a running total as cards are dealt. Progress through increasingly challenging levels with a timed element. The game offers progress tracking and is designed to make counting enjoyable.
Practice card counting to improve your blackjack skills. Challenge yourself to count as many cards as possible within a 30-second time limit.
Manage your EFS or Fleet One cards with real-time balances, transaction details, and fuel location finder. This app allows drivers to quickly access card functions, register checks, and manage funds on the go.
A card game where players aim to get a higher score than their opponent without exceeding 21. Choose from classic or power-up modes, playing solo or with friends.
Quickly scan and identify trading cards to track their market prices and manage your collection. Access your entire collection on the go and browse the extensive marketplace for seamless shopping.
Instantly scan and identify sports and trading cards using AI. Get real-time pricing based on sold data and receive AI-powered condition grading. Organize your collection and get advice from an AI trading advisor.
Easily identify and track the value of your trading card collection. Scan cards with your camera to get real-time pricing, track collection progress, and manage your inventory. Supports a wide range of popular trading card games.
Enhance your card game experience with player management, rule explanations, and performance tracking. Get intelligent guidance and AI assistance to improve your strategy and make every match more engaging.
This app uses AI to instantly identify and value sports and anime cards. It helps collectors manage their inventory, track market trends, and connect with a community of enthusiasts for trading.
Enhance your card show experience by connecting collectors and vendors in real time. Search for desired cards, receive instant notifications, and navigate directly to vendors. Maximize sales and find sought-after items efficiently.
Easily identify trading cards with a photo and track their real-time market value. Organize your collection, monitor price trends, and make informed decisions for buying, selling, or trading.
Effortlessly manage your poker home games. Track player stats, monitor profits, and handle mid-session adjustments with dynamic ledger uploads. Share game data easily with friends.
Easily identify and value your trading cards using your phone's camera. Track your collection's worth, manage your inventory, and stay updated on market prices. Build watchlists for desired cards and explore a comprehensive catalog.
Quickly scan Pokémon cards to get instant market prices and sell them. The app uses AI for fast recognition and offers up to 95% of market value with no seller fees. Track your sales and shipments easily.
Organize and manage your digital gift cards from over 100 major brands. Securely store card details, track expiration dates, and access your collection in one place. Stay updated with brand news and save helpful content.
Slide cards to reveal layers and collect rewards like coins and gems. Unlock chests and trigger special wheels for bonus surprises. Level up by gaining experience to access new cards and content.
This offline card game challenges players to bid and set trumps in a strategic partnership game. Aim to be the first team to reach 6 points by capturing valuable cards. Enjoy hours of entertainment with intelligent computer opponents.
Instantly identify trading cards using your camera in real-time. This app recognizes collectible cards offline, displays their market value, and helps organize your collection. It's designed for speed and ease of use, perfect for collectors at home or at shows.
This app unifies campus access, credentials, payments, and security. It streamlines system management, integrates data, and handles financial transactions for a seamless campus experience.