# Swap 21 — Swap, match, score 21!

> Swap, match, score 21! (iPhone/iPad app by Jack Aksay.)

- Source: https://appshunter.io/ios/app/swap-21/id6759506579 (this page in markdown: same URL + `.md`)
- Developer: [Jack Aksay](https://appshunter.io/developer/688658004)
- Category: Games, Casual, Card
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 166 MB
- Languages: American English
- Released: 2026-02-23
- Data updated: 2026-02-26
- User reviews in markdown: https://appshunter.io/ios/app/swap-21/id6759506579/reviews.md

## What is Swap 21?

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?


## Version history (last 1 release)

### 1.0 — 2026-02-24

No release notes.

## More apps by Jack Aksay

- [Orbs](https://appshunter.io/ios/app/orbs/id6758360927)
- [Number March](https://appshunter.io/ios/app/number-march/id6759080096)
- [Tower of Babel Rising](https://appshunter.io/ios/app/tower-of-babel-rising/id6759303124)
- [The Kingfisher](https://appshunter.io/ios/app/the-kingfisher/id6759455098)
- [Sakurayu](https://appshunter.io/ios/app/sakurayu/id6759636385)

All apps by Jack Aksay: https://appshunter.io/developer/688658004

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-02-26.*