Comparison

Star2 Random Defense(S2RD) vs Grades Puzzle

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

Head to head
About

Star2 Random Defense(S2RD)

Experience a classic vertical strategy defense game with unpredictable battles and endless strategic possibilities. Combine random heroes, utilize a deep trait system, and adapt your tactics to diverse regions. Every match offers a new adventure where luck and strategy intertwine.

Highlights
  • Random hero summons
  • Strategic card combinations
  • Over 100 unique traits
  • 7-tier hero progression system
  • Diverse regional challenges
  • Vertical gameplay
Features
Read full description

Star2 Random Defense: S2RD Relive the nostalgia, now in your hands! Crafted by the original creator, this mobile version of the classic random combination defense game is here. Dive into a vertical strategy defense game packed with unpredictable battles and endless strategic possibilities. Feel the thrill where a single choice can turn the tide of victory! Random Summons and Strategic Choices Every battle brings completely random heroes! Use limited resources to draw cards and craft the ultimate combination. A single card can shift the battle, and one decision can secure your win. Luck? Strategy? You’ll need both to triumph! Trait System for Your Unique Build Create your own playstyle with over 100 unique traits. Every match births a new build! Grow your heroes through a 7-tier system from basic to legendary and unleash overwhelming power. Diverse Regions, Infinite Challenges Jungle swamps, desert sandstorms, volcanic lava—each region demands a distinct strategy. With over 88 unique heroes and 200+ distinct cards, no two battles are ever the same. Why S2RD? - Thrill of Randomness: The excitement of unpredictable summons! - Depth of Strategy: Endless combinations with cards and traits. - Casual Fun: Vertical gameplay, perfect for anytime, anywhere! With ever-changing combinations and tactics, no battle is ever repeated. Level up heroes from the lowest tier to legendary through a 7-stage system and create your ultimate combination! Test the limits of luck and strategy with S2RD now. Every match is a new adventure! ※ Purchasing paid items incurs additional charges (including randomized items). ※ Payment amount and method: Subject to the payment amount and method specified for each product. ※ Payments in foreign currency may vary due to exchange rates and fees. ※ In-app purchases are subject to VAT. [Terms and Conditions] Privacy Policy: https://gameboost.cafe24.com/mobile/privacypolicyEN.html

About

Grades Puzzle

Features
Read full description

Grades puzzle is a logic puzzle game. Fill numbers in some cells of a grid with size of 8x8 or 12x12 that satisfy rules: + No two horizontally, vertically or diagonally adjacent cells contain a digit + The numbers across the top of the grid indicates or count the total of numbers in the according columns. + The numbers down the left of the grid indicates or count the total of numbers in the according rows. + The numbers across the bottom of the grid are the sum of numbers in the according columns. + The numbers down the right of the grid are the sum of numbers in the according rows. Have fun! Feel free to give your feed back here!

Screenshots

Star2 Random Defense(S2RD)4 screens
Grades Puzzle4 screens

Verdict

The call

The clearest difference is in-app purchases: Grades Puzzle at none against Star2 Random Defense(S2RD)'s 10. Grades Puzzle also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). Star2 Random Defense(S2RD)'s advantage is update cadence (weekly vs every 5 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Star2 Random Defense(S2RD) sells 10 one-off in-app purchases. Grades Puzzle asks for nothing beyond the download.

UpkeepUpdate frequency

Star2 Random Defense(S2RD) ships an update weekly, Grades Puzzle every 5 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Star2 Random Defense(S2RD) versus Grades Puzzle: the parameters behind the verdict, then further details
ParameterStar2 Random Defense(S2RD)Grades Puzzle
PriceFreeFree
Rating2.4 (5 ratings) — better—
Positive reviews26.1% of reviews—
Number of ratings5 — better—
Update frequencyWeekly — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size584 MB96 MB
Age rating9+12+
DeveloperSpringcomes Co., Ltd.Hieu Hoang

In-app purchases

10 purchases

Star2 Random Defense(S2RD)

One-time10
  • high efficiency 3d package 1$0.99
  • Special Membership (28 Days)$3.99
  • premium membership (28 Days)$3.99
Show 7 more
  • high efficiency 3d package 2$3.99
  • hunting pass premium$9.99
  • forgotten rift premium attendance$11.99
  • eternal rift premium attendance$11.99
  • eternal rift premium pass$22.99
  • level pass basic 4$34.99
  • level pass premium 4$99.99
None

Grades Puzzle

No in-app purchases

Questions

Is Star2 Random Defense(S2RD) free?
Star2 Random Defense(S2RD) is free to download, with in-app purchases available.
Is Grades Puzzle free?
Grades Puzzle is free to download, with no in-app purchases.
Do Star2 Random Defense(S2RD) or Grades Puzzle have ads?
Star2 Random Defense(S2RD) shows ads; Grades Puzzle does not.
Which is updated more often, Star2 Random Defense(S2RD) or Grades Puzzle?
Star2 Random Defense(S2RD) ships an update weekly, and Grades Puzzle every 5 months. Most recently, Star2 Random Defense(S2RD) was updated on October 30, 2026 and Grades Puzzle on October 28, 2026.

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