Crazy Aces vs Swap 21
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Crazy Aces
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Crazy Aces is a fast-paced card game featuring stunning artwork from 100+ artists from around the world, brought to you by Playing Arts. HOW TO PLAY • Match the suit or rank of the top card • Play an Ace on anything—then choose the next suit • Jokers are wild—play on anything and go again • Can't play? Draw from the deck • First to empty your hand wins! FEATURES • Beautiful hand-illustrated cards by world-renowned artists • Quick, addictive gameplay • Play against a smart AI opponent • Track your winning streak • No ads, no in-app purchases Crazy Aces brings together art and play in a beautifully designed card game. Each card is a miniature masterpiece created by talented artists from the Playing Arts collective. Download now and discover the art of play!
Swap 21
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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?
Screenshots
Verdict
The clearest difference is iOS requirement: Crazy Aces at 15.1 against Swap 21's 17.6. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Crazy Aces | Swap 21 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 41 MB | 166 MB |
| Age rating | 4+ | 4+ |
| Developer | Digital Abstracts SL | AKSAY LABS LLC |
In-app purchases
Crazy Aces
No in-app purchases
Swap 21
No in-app purchases









