Swap 21
Swap, match, score 21!
Free · Designed for iPad
Swap cards, match 21, earn three stars! 100 levels of quick-thinking card puzzle fun. Compete on Game Center leaderboards!
Swap, match, score 21!
Think fast, swap smart. Swap 21 is a card puzzle game where you swap adjacent cards on a 5×6 grid to form groups of three that add up to 21 — just like blackjack.
How to Play
Swap any two neighboring cards to line up three in a row or column that total 21. Face cards (J, Q, K) are worth 10, Aces count as 1 or 11, and number cards are face value. Match as many 21s as you can before time runs out!
Features
• 100 handcrafted levels with increasing challenge
• Race the clock — every second counts
• 3-star rating system based on matches made
• Wildcards to break through deadlocks
• Hints after moments of inactivity
• Penalty for bad swaps — think before you move!
• Game Center leaderboards for every level
• 8 achievements to unlock
• Clean, elegant card design
• No ads. No energy timers. Just puzzles.
Easy to learn, hard to master. Can you three-star them all?
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
The developer, Jack Aksay, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jack Aksay
- Size
- 173.6 MB
- Category
- Card
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jack Aksay
