Comparison

21 vs Crystara

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

Head to head
About

21

Features
Read full description

Hit 21. Don't bust. Claim falling cards, stack smart, and clear every slot. Easy to learn, impossible to master.

About

Crystara

Features
Read full description

Crystara is a beautifully crafted block puzzle game with sparkling gem visuals and satisfying gameplay. Drag and drop colorful gem blocks onto an 8x8 board, complete rows and columns to clear them, and chase your highest score! EASY TO LEARN, HARD TO MASTER Simply drag gem-shaped blocks from the tray onto the board. Fill an entire row or column to clear it and earn points. Plan your moves carefully โ€” the game ends when no more pieces can be placed! FEATURES - Stunning crystal gem visuals with glowing effects and particle animations - Smooth drag-and-drop controls with haptic feedback - 7 unique gem types with vibrant colors - Diverse block shapes from simple singles to challenging pentominoes - Combo system โ€” clear multiple lines in a row for massive score multipliers - Progressive leveling โ€” difficulty scales as you improve - Undo feature โ€” watch a short video to take back your last move - Continue option โ€” watch a video ad to keep playing after game over - Offline play โ€” no internet required to enjoy the game - Clean, distraction-free design with a cosmic starry background Perfect for quick sessions or long puzzle marathons. How high can you score?

Screenshots

214 screens
Crystara4 screens

Verdict

The call

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

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference ยท 5 level
21 versus Crystara: the parameters behind the verdict, then further details
Parameter21Crystara
PriceFreeFree
Update frequencyEvery 2 daysโ€”
AdsYesNo โ€” better
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 โ€” better
Further details โ€” not scored
Size39 MB7 MB
Age rating4+4+
DeveloperChee Hoong KhorROKONTECH LLC

In-app purchases

None

21

No in-app purchases

None

Crystara

No in-app purchases

Questions

Is 21 free?
21 is free to download, with no in-app purchases.
Is Crystara free?
Crystara is free to download, with no in-app purchases.
Do 21 or Crystara have ads?
21 shows ads; Crystara does not.

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