WORLDSTACK vs Ball Merge
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
WORLDSTACK
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Behind every door, a new law of physics. Open one, and that law joins your run. WORLDSTACK is a colourful, surreal action roguelite. You are the Keeper, carrying the Last Star your light, your health, and your score through unstable pocket worlds. Each world ends at three floating doors. Every door adds a rule to your active stack: lower gravity, flood the world, magnetise metal, let fire spread, wake sleeping hazards, or double your score while making the Last Star fragile. Rules don’t just stack, they interact. Low gravity softens landings so glass floors survive. Fire meeting floodwater fills the world with steam. Magnetised metal near the Star redirects lightning. Your run, your rules, your own beautiful disaster. • 32 world-bending rules with real interactions • 8 designed world archetypes, procedurally rebuilt every run • 12 visually distinct door families • 5 guardians whose fights respond to your active laws • Special events every fifth door: repair, remove, fuse, upgrade or take a risk • Every completed run becomes a constellation you keep • A shared daily seed and rotating weekly missions • Missions, achievements and earnable cosmetics • Fully playable offline with no account • One-handed portrait controls • Reduced flashing, reduced shake, large-text and left-handed modes, plus adjustable sensitivity The doors are patient. The doors are waiting.
Ball Merge
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Ball Merge – Match, Merge & Grow! Welcome to Ball Merge, a simple and engaging merge game where your goal is to match balls and create bigger ones. Drop the balls carefully, combine matching balls, and keep merging to achieve the highest score. When two balls of the same color and size come together, they merge into a bigger ball. Plan your moves carefully, create chain reactions, and make the most of the available space. With simple controls, colorful visuals, and satisfying merge mechanics, Ball Merge offers an enjoyable experience for casual players and puzzle game fans. How to Play • Drop the balls into the play area. • Match two balls of the same color and size. • Merge matching balls to create a bigger ball. • Plan your moves to make more space for new balls. • Create chain reactions by making smart combinations. • Keep merging and aim for the highest score. • Avoid filling the play area and keep the game going. Features -Easy to Learn, Fun to Play Simple controls and straightforward gameplay make Ball Merge easy to pick up and enjoy. -Satisfying Merge Gameplay Match identical balls and watch them combine into larger balls. -High Score Challenge Keep improving your strategy and challenge yourself to achieve a higher score. -Strategic Gameplay Think ahead and choose the right place to drop each ball to keep the board under control. - Colorful Ball Designs Enjoy a variety of colorful and visually appealing balls as you progress. - Smooth Gameplay Simple and responsive controls provide a smooth gaming experience. -Replay and Improve Play again, try different strategies, and beat your previous high score. -Challenge Yourself Every drop can change the game. As the balls become bigger, managing the available space becomes more challenging. Plan your moves, look for matching balls, and create multiple merges whenever possible. How big can you make your ball, and how high can you take your score? -Why You'll Love Ball Merge Ball Merge combines simple controls with strategic merge gameplay. It is easy to understand but becomes more challenging as you continue playing. Whether you want to play for a few minutes or challenge yourself to beat your best score, Ball Merge provides a simple and satisfying gaming experience. Perfect For • Merge game lovers • Puzzle game enthusiasts • Casual gamers • Players who enjoy matching games • Players who enjoy high-score challenges • Anyone looking for simple and relaxing gameplay Download Ball Merge today and start matching, merging, and growing your way to a new high score!
Screenshots
Verdict
WORLDSTACK and Ball Merge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
WORLDSTACK ships an update every 2 weeks, Ball Merge weekly. Both last shipped on October 14, 2026.
| Parameter | WORLDSTACK | Ball Merge |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 39 MB | 106 MB |
| Age rating | 4+ | 4+ |
| Developer | MEHMET FATIH AKARCA | Gatch |
In-app purchases
WORLDSTACK
No in-app purchases
Ball Merge
No in-app purchases
Questions
Is WORLDSTACK free?
Is Ball Merge free?
Do WORLDSTACK or Ball Merge have ads?
Which is updated more often, WORLDSTACK or Ball Merge?
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