Comparison

Galaxy Collider vs Planet Gravity

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

Head to head
About

Galaxy Collider

Explore the physics of interacting galaxies with a powerful simulation. Visualize spectacular collisions and manipulate parameters like star count and mass to discover infinite cosmic interactions. Use your device's accelerometer to change viewpoints and add external forces.

Highlights
  • Galaxy collision simulation
  • Gravitational force computation
  • High-performance particle engine
  • Interactive visualization
  • Adjustable simulation parameters
  • Accelerometer control
Features
Read full description

Galaxy Physics in your pocket! Galaxy Collider simulates the universe in your pocket. So brace yourself for the collision of the Milky Way with the Andromeda Galaxy! Galaxy Collider simulates the physics of interacting galaxies by computing the gravitational forces between the stars and the heavy galaxy centers. Galaxy collider features a high performance particle engine that can interactively visualize spectacular galaxy interactions. It uses OpenGL point sprites for rendering thousands of high-quality stars at high frame rates. The parameters of the simulation, such as the number of galaxies and stars, masses, etc. can be changed interactively to explore the infinite number of possible interactions between the galaxies. Galaxy collider uses the build-in accelerometer of IPhone or IPod touch to change viewpoints add real external forces to the simulation. For further information about interacting galaxies check out the Wikipedia article at http://en.wikipedia.org/wiki/Interacting_galaxy)

About

Planet Gravity

Engage in a physics-based game simulating asteroid flight and solar system creation. Complete missions to explore the universe and pass the time. Discover other titles for freeform universe building.

Highlights
  • Physics-based gameplay
  • Asteroid simulation
  • Solar system creation
  • Level-based missions
  • Universe exploration
Features
Read full description

"Planet Gravity" is a physical base game. We simulate asteroids flying over space. And create the solar system step by step. On each level, we will have some missions for you to finished. The goal of this game is increase your interesting on universe and helping you to the pass the time. And if you want to create the universe on your own freely, we have two games suggested to you. Find "myDream Universe" or "Sandbox Planet" on Appstore.

Screenshots

Galaxy Collider3 screens
Planet Gravity4 screens

Verdict

The call

The clearest difference is price: Galaxy Collider at $0.99 against Planet Gravity's $11.00. Galaxy Collider also leads on in-app purchases (none vs 1) and ads (none vs shown). Planet Gravity's advantage is rating (4.2 vs 3.9) and update cadence (every 4 months vs every 11 months). On 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

Galaxy Collider costs $0.99 and Planet Gravity $11.00 up front. Planet Gravity sells 1 one-off in-app purchase. Galaxy Collider asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Planet Gravity holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 17 and 54 respectively. Written reviews complicate that: 61% of Galaxy Collider's written reviews are positive against 44% of Planet Gravity's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Galaxy Collider ships an update every 11 months, Planet Gravity every 4 months. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

Scorecard10 real differences · 1 level
Galaxy Collider versus Planet Gravity: the parameters behind the verdict, then further details
ParameterGalaxy ColliderPlanet Gravity
Price$0.99 — better$11.00
Rating3.9 (17 ratings)4.2 (54 ratings) — better
Positive reviews61.0% of reviews — better44.1% of reviews
Number of ratings1754 — better
Update frequencyEvery 11 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterPaid
Best chart rank#182 — better—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better15.6
Further details — not scored
Size11 MB108 MB
Age rating4+4+
DeveloperAngisoftOscar Tsang

Customer experience

Galaxy Collider

All ratings17 ratings
Positive70.6%
Neutral11.8%
Negative17.6%
Written reviews41 reviews
Positive61.0%
Neutral14.6%
Negative24.4%

Planet Gravity

All ratings54 ratings
Positive77.8%
Neutral7.4%
Negative14.8%
Written reviews34 reviews
Positive44.1%
Neutral11.8%
Negative44.1%

In-app purchases

None

Galaxy Collider

No in-app purchases

1 purchases

Planet Gravity

One-time1
  • Golden Pass$2.99

Questions

Is Galaxy Collider free?
Galaxy Collider costs $0.99, with no in-app purchases.
Is Planet Gravity free?
Planet Gravity costs $11.00, and also offers in-app purchases.
Which has better reviews, Galaxy Collider or Planet Gravity?
Planet Gravity is rated higher. Galaxy Collider averages 3.9 out of 5 from 17 ratings, while Planet Gravity averages 4.2 from 54 ratings.
Do Galaxy Collider or Planet Gravity have ads?
Planet Gravity shows ads; Galaxy Collider does not.
Which is updated more often, Galaxy Collider or Planet Gravity?
Galaxy Collider ships an update every 11 months, and Planet Gravity every 4 months. Most recently, Galaxy Collider was updated on October 12, 2026 and Planet Gravity on October 15, 2026.

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