Comparison

Cosmic Merge Game vs StarrBlocks

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

Head to head
About

Cosmic Merge Game

Engage in a physics-based puzzle where you drop celestial objects that merge upon collision, evolving from dust to black holes. Experience unique procedurally generated worlds and chain merges for high scores.

Highlights
  • Physics-based drop and merge gameplay
  • 11 celestial tiers to discover
  • Procedurally generated worlds with unique visuals
  • Combo multiplier system for high scores
  • Global leaderboards and achievements
  • Universal app for iPhone, iPad, and Apple TV
Features
Read full description

Drop. Collide. Evolve. Cosmic Merge is a physics-based puzzle game where you drop celestial objects into a cosmic arena and watch gravity do the rest. When two matching objects collide, they merge into something bigger — and more spectacular. Chain your merges together to build combos, rack up bonus points, and evolve tiny specks of cosmic dust all the way into a black hole. 11 CELESTIAL TIERS TO DISCOVER Begin with humble dust particles and work your way through an entire cosmic evolution: Dust → Asteroid → Ice Rock → Molten World → Moon → Planet → Slime World → Gas Giant → Star → Storm World → Black Hole Each tier features a unique procedurally-generated surface that reacts to how you tilt your device — from golden crystalline dust to volcanic lava rivers, bioluminescent oceans, crackling lightning storms, and swirling accretion disks. PHYSICS-DRIVEN GAMEPLAY Every drop matters. Objects tumble, bounce, and settle under realistic gravity. Stack carefully to set up chain reactions, or watch a single well-placed drop trigger a cascade of merges. The non-linear physics mean every game plays out differently — surprising moments emerge from the chaos. COMBO SYSTEM Merge quickly and you'll trigger combo multipliers that skyrocket your score. Time your drops to keep the chain alive and aim for the top of the arena for height bonuses. The deeper your combos, the bigger the reward. STUNNING PROCEDURAL VISUALS Every object is rendered with its own real-time shader — no static images. Watch lava flow across molten worlds, lightning arc across storm planets, and stars pulse with solar flares. The deep-space background comes alive with twinkling starfields, drifting nebulae, distant supernovas, passing comets, and pulsing gravitational waves. COMPETE GLOBALLY Game Center leaderboards let you see how your score stacks up against players worldwide. Unlock 13 achievements across tier milestones, score goals, and combo challenges. How far can you push your best run? FEATURES Addictive drop-and-merge physics puzzle gameplay 11 unique celestial objects, each with its own procedural shader Tilt-responsive lighting on every object Combo multiplier system for chaining merges Dynamic particle effects for merges, collisions, and drops Procedural sound design and 3 original music tracks Haptic feedback that matches the action Game Center leaderboards and 13 achievements Universal app — plays on iPhone, iPad, and Apple TV No ads. No in-app purchases. Just the game.

About

StarrBlocks

This app offers four distinct puzzle game experiences: a classic falling-block game, a drag-and-place block puzzle, a tactile Woodoku style game, and a physics-based stacking challenge. Each game features unique modes, themes, and visual effects for engaging gameplay.

Highlights
  • Falling-block puzzle with multiple modes
  • Drag-and-place block puzzle with daily challenges
  • Tactile Woodoku with row/column/box clears
  • Physics-based tower stacking game
  • 30+ customizable themes
  • Satisfying visual and haptic effects
  • Local and Game Center leaderboards
Features
Read full description

Stack. Clear. Blast. Quest. Carve. StarrBlocks is a native iOS puzzle arcade built for quick rounds, deep mastery, and that "one more run" pull. Start with StarrBlocks, a polished falling-block puzzle with smooth swipe-and-tap controls, satisfying rotations, hard-drop trails, rich haptics, and line clears that pop. Switch to StarrBlast, an 8x8 drag-and-place block puzzle with its own modes, themes, daily challenges, and cinematic blast effects. Then there's StarrWood, a tactile 9x9 Woodoku puzzle: drag carved wood pieces onto the board, clear rows, columns, and 3x3 sudoku boxes, and wander a Journey trail of hand-painted polaroid scenes you unlock one level at a time. We've also got StarrTricks, a tower height game mode where you see just how high you can stack the blocks without letting the pieces topple over! FOUR PUZZLE GAMES IN ONE STARRBLOCKS Marathon: classic endurance. Survive rising speed and chase a bigger score. Sprint: clear 40 lines as fast as possible. Ultra: three-minute blitz where every placement matters. Bombs: chain explosive clears and turn pressure into fireworks. STARRBLAST Classic: endless 8x8 block placement with no falling timer. Daily: a shared daily seed with streaks and one clean run per day. Quest: 90 story levels with handcrafted boards, objectives, collectibles, and stars. STARRWOOD Endless: free-play 9x9 Woodoku with sudoku-box clears, scattered collectible gems that bonus your score, and randomized painterly backdrops on every open. Journey: hand-authored 30-stop trails (starting with Camping) where the screen scenery shifts between polaroid scenes — campfire, lakeside, summit, sunrise — as you collect themed gems against a move limit. THEMES WITH PERSONALITY STARRTRICKS Tower: physics-based tetromino stacking where every block has weight, wobble, and consequence. Build upward across checkpoint lines, brace risky pieces with Anchor power, and chase your tallest tower in feet. Play across 30+ custom themes, from Aurora, Cosmic, Jelly, Tron, Atoll, Aquarium, Trench, and Prism to StarrBlast worlds like Ocean Depths, Crystal Gems, Ancient Relics, Gridrunner Protocol, and Phantom. StarrWood adds a hand-painted wood-grain family with multiple stains for every Woodoku run. Themes change more than color: boards, pieces, backgrounds, trails, particles, and line-clear effects all get their own personality. EFFECTS THAT FEEL GOOD Hard-drop trails show the path your piece took. StarrBlast line clears turn rows and columns into radiant blasts. StarrWood Journey backdrops shift painterly scenes as you walk the trail. Custom effects, particles, screen motion, and haptics make every clear tactile. A 21-track soundtrack and sound effects can be mixed, muted, or tuned to your mood. BUILT FOR HOW YOU PLAY Responsive controls designed for thumbs Local high scores and run history Game Center leaderboards for score-based modes Playable onboarding that gets out of your way Music, sound, haptics, ghost pieces, classic pieces, and visual options Native SwiftUI polish with smooth animation on iPhone and iPad NO NOISE No ads. No timers between rounds. No paywalls blocking the good stuff. Just open the app, pick your mode, and chase the next clear. StarrBlocks is for players who love thoughtful puzzle design, satisfying feedback, and games that turn a spare minute into a real run.

Screenshots

Cosmic Merge Game2 screens
StarrBlocks4 screens

Verdict

The call

The clearest difference is update cadence: StarrBlocks at daily against Cosmic Merge Game's every 2 weeks. On price, rating, ratings volume and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Cosmic Merge Game holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 6 respectively.

UpkeepUpdate frequency

Cosmic Merge Game ships an update every 2 weeks, StarrBlocks daily. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Cosmic Merge Game versus StarrBlocks: the parameters behind the verdict, then further details
ParameterCosmic Merge GameStarrBlocks
PriceFreeFree
Rating5.0 (5 ratings) — better4.8 (6 ratings)
Positive reviews—100.0% of reviews
Number of ratings56 — better
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Apple TV — betteriPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size33 MB210 MB
Age rating4+4+
DeveloperScott BrantJoshua Starr

Customer experience

Cosmic Merge Game

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

StarrBlocks

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Cosmic Merge Game

No in-app purchases

None

StarrBlocks

No in-app purchases

Questions

Is Cosmic Merge Game free?
Cosmic Merge Game is free to download, with no in-app purchases.
Is StarrBlocks free?
StarrBlocks is free to download, with no in-app purchases.
Which has better reviews, Cosmic Merge Game or StarrBlocks?
Cosmic Merge Game is rated higher. Cosmic Merge Game averages 5.0 out of 5 from 5 ratings, while StarrBlocks averages 4.8 from 6 ratings.
Do Cosmic Merge Game or StarrBlocks have ads?
Neither Cosmic Merge Game nor StarrBlocks shows ads.
Which is updated more often, Cosmic Merge Game or StarrBlocks?
Cosmic Merge Game ships an update every 2 weeks, and StarrBlocks daily. Most recently, Cosmic Merge Game was updated on October 12, 2026 and StarrBlocks on October 24, 2026.

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