Comparison

Logic Nine vs Gemfall Stack Master

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

Head to head
About

Logic Nine

Features
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Logic Nine: The Ultimate Immersive Sudoku Experience Elevate your mind and find your focus with Logic Nine, the most elegant and distraction-free Sudoku game on the App Store. Whether you're a beginner looking for a brain teaser or a Sudoku master seeking a challenge, our beautifully crafted dark-themed interface provides the perfect environment for logic mastery. Why Logic Nine? Pure Gameplay: No cluttered menus or blinding white screens. Dive straight into a deep-blue, eye-friendly interface designed for long-play sessions. Smart Tools: Integrated Undo and Hint systems to help you navigate through tough 9x9 grids without frustration. Track Your Progress: A built-in timer lets you challenge your personal best and witness your logic skills sharpen over time. Global Challenge: Designed for players worldwide with a minimalist language-independent UI. Key Features: Classic 9x9 Sudoku puzzles. Minimalist, premium UI (Optimized for Dark Mode). Smooth, responsive input system (built for iOS). Lightweight and offline-friendly. Train your brain, improve your memory, and relax your mind. Download Logic Nine today and master the grid!

About

Gemfall Stack Master

Features
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Gemfall Stack Master is a sparkling falling-block puzzle game where quick thinking, smart placement, and clean clears lead to higher scores. Gem-shaped blocks fall from the top of the board. Rotate, shift, and place each piece to build solid lines, clear space, and keep the stack under control. Plan ahead, create chain clears, and master the rhythm of falling gems as the challenge grows. Easy to play and satisfying to improve, Gemfall Stack Master brings a polished gem puzzle twist to classic block-stacking strategy. Features: -Rotate and move falling gem blocks -Stack pieces to complete and clear lines -Create chain clears for higher scores -Smooth puzzle action with simple controls -Great for fans of block, line-clear, and logic puzzles Keep the Gem-shaped blocks falling, clear the board, and become the stack master.

Screenshots

Logic Nine3 screens
Gemfall Stack Master3 screens

Verdict

The call

Logic Nine and Gemfall Stack Master are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Logic Nine versus Gemfall Stack Master: the parameters behind the verdict, then further details
ParameterLogic NineGemfall Stack Master
PriceFreeFree
Update frequencyEvery 8 days—
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size36 MB13 MB
Age rating4+4+
Developer书勤 吴Dat Tran Dinh

In-app purchases

None

Logic Nine

No in-app purchases

None

Gemfall Stack Master

No in-app purchases

Questions

Is Logic Nine free?
Logic Nine is free to download, with no in-app purchases.
Is Gemfall Stack Master free?
Gemfall Stack Master is free to download, with no in-app purchases.
Do Logic Nine or Gemfall Stack Master have ads?
Both Logic Nine and Gemfall Stack Master show ads.

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