Comparison

Blockrix vs Swap 21

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Blockrix

Features
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Blockrix: A New Dimension in Block Puzzle Games Experience the classic block puzzle formula evolved with modern graphics and thrilling new mechanics. Blockrix is more disguised than just placing blocks; it tests your strategy and reflexes with a rising game board, strategic power-ups, and over 300 unique levels. KEY FEATURES: EPIC POWER-UPS: Dominate the board with Ion Beam, Nova Blast, and Spectrum Surge. Each ability offers a unique way to clear the board and survive. 300+ HANDCRAFTED LEVELS: A balanced difficulty curve ranging from casual fun to impossible challenges. Every level is a new puzzle to solve. ENDLESS MODE: Push your limits in a test of pure endurance. How long can you survive the ever-rising tide of blocks? RICH AESTHETICS: Immerse yourself in a premium neon-themed atmosphere with smooth animations and dynamic backgrounds. ICLOUD SYNC: Your progress is safe. Sync your levels and progress seamlessly across all your Apple devices. TACTILE FEEDBACK: Feel every move with optimized haptics that bring the game to life. Can you stop the blocks from reaching the top? Download Blockrix now and join the puzzle master legend.

About

Swap 21

Features
Read full description

Swap, match, score 21! Think fast, swap smart. Swap 21 is a card puzzle game where you swap adjacent cards on a 5Ɨ6 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

Blockrix3 screens
Swap 213 screens

Verdict

The call

The clearest difference is in-app purchases: Swap 21 at none against Blockrix's 4. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Blockrix sells 4 one-off in-app purchases. Swap 21 asks for nothing beyond the download.

Scorecard1 real difference Ā· 5 level
Blockrix versus Swap 21: the parameters behind the verdict, then further details
ParameterBlockrixSwap 21
PriceFreeFree
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.617.6
Further details — not scored
Size22 MB166 MB
Age rating4+4+
DeveloperMuhammet AYDINAKSAY LABS LLC

In-app purchases

4 purchases

Blockrix

One-time4
  • 100 Diamonds$0.99
  • 550 Diamonds$4.99
  • 1200 Diamonds$9.99
Show 1 more
  • 3000 Diamonds$24.99
None

Swap 21

No in-app purchases

Questions

Is Blockrix free?
Blockrix is free to download, with in-app purchases available.
Is Swap 21 free?
Swap 21 is free to download, with no in-app purchases.
Do Blockrix or Swap 21 have ads?
Neither Blockrix nor Swap 21 shows ads.

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