Comparison

Grav Box vs Universe Gravity Simulator 3D

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

Head to head
About

Grav Box

Control gravity with a tap and hold to manipulate objects. Customize their appearance, explore dynamic physics, and engage in arcade challenges with leaderboards and achievements.

Highlights
  • Tap and hold to control gravity
  • Customize grav colors and emojis
  • Dynamic backgrounds and physics effects
  • Arcade mode with achievements
  • Global leaderboards
  • In-game events like black holes
Features
Read full description

Grav Box places gravity at your fingertips. Tap and hold on the screen to control the gravitational field around your gravs and manipulate them in limitless ways. Customize your entire experience by setting gravs to any color or emoji, explore dynamic backgrounds and physics effects, and even modify the effects of gravity itself. With custom preferences set, head to the arcade to unlock achievements and compete against global leaderboards. Be prepared for black holes, gravitational shifts, and many other in-game events that will impact your gameplay.

About

Universe Gravity Simulator 3D

Explore and shape the cosmos in this 3D space simulator. Create galaxies, destroy planets, and engage in epic space battles. Experience realistic physics and stunning visuals as you journey through star realms.

Highlights
  • Realistic physics engine
  • Dynamic universe creation
  • Immersive 3D environments
  • Gravity simulation
  • Solar system exploration
  • Interplanetary collisions
  • Space combat missions
Features
Read full description

Welcome to Universe Gravity Simulator 3D, where the cosmos is your playground! This universe sandbox is the ultimate outer space game, combining elements of arcade games, alien shooter missions, and gravity-defying fun. Whether you're a casual gamer or a dedicated space enthusiast, this game will pull you in with its realistic simulation of outer planets, star realms, and intergalactic battles. If you've ever wondered what it feels like to be a planet creator or a planet destroyer, this solar system game puts the power of the universe in your hands! Imagine the thrill of building and shaping entire galaxies, adjusting orbits, growing stars, and watching your solar system evolve. But it's not just about creation—Universe Gravity Simulator 3D lets you engage in galaxy attacks, destroy planets, and even wipe out stars. You’ll command your own space force as you fight to protect your Earth, while also facing off against alien invaders in intense battles inspired by arcade classics like space invaders and galaxy attack. As you play, you’ll discover stars, tweak gravitational forces, and even set up interplanetary collisions, all in the name of fun. Have you ever stargazed and wondered what it would be like to explore Venus, Mars, or the outer reaches of the solar system? Or maybe you've daydreamed of being an astronaut, hurtling through the galaxy in a powerful spaceship, fighting off space invaders in a heroic space battle? Universe Gravity Simulator 3D allows you to explore all of these possibilities and more. The stunning visuals will transport you to far-off star realms where your spaceship sim becomes more than just a game—it's a journey through space and time, a space odyssey that blurs the lines between play and exploration. Game Features: • Realistic physics engine and mechanics. • Dynamic universe creation and amazing phenomenon. • Immersive 3D environments and stunning graphics. • Gravity simulator with solar systems to discover. • Interactive journal to track your universe simulator 3D. • Embark on a journey through space, where you can craft your own universe within a universe sandbox, explore the solar system simulator, and experiment with the laws of physics in a space sandbox. • With Universe Space Simulator, the cosmos is at your fingertips—ready to be shaped, explored, and understood How to Play: • Discover Sandbox Planets, design and create your own solar system, galaxy, universe, and space, and enjoy watching them orbit, • collide, and interact in a cosmic dance in your space sandbox. • Start with a small asteroid absorbing other asteroids to form a solar system. • Adjust the galaxy speed as you like it most. Explore how life develops in your solar system through the planet journal. • Screenshot your complete galaxy with stars and share it with family/friends. Universe Gravity Simulator 3D offers endless possibilities for fans of outer space games, whether you're into astronomy games, arcade action, or stargazing in a planetarium 3D environment. Dive into this expansive solar system game, harness gravity, and become the ultimate master of the universe!

Screenshots

Grav Box4 screens
Universe Gravity Simulator 3D4 screens

Verdict

The call

The clearest difference is review sentiment: Grav Box at 96% against Universe Gravity Simulator 3D's 43%. Grav Box also leads on rating (4.8 vs 4.0). Universe Gravity Simulator 3D's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 5 months). On price, in-app purchases, monetization model 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. Grav Box sells 10 one-off in-app purchases and Universe Gravity Simulator 3D sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Grav Box holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Universe Gravity Simulator 3D has 143 ratings behind it against 26, so its average is the more settled of the two. Written reviews point the same way: 96% of Grav Box's written reviews are positive against 43% of Universe Gravity Simulator 3D's.

UpkeepUpdate frequency

Grav Box ships an update every 5 months, Universe Gravity Simulator 3D every 5 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Grav Box versus Universe Gravity Simulator 3D: the parameters behind the verdict, then further details
ParameterGrav BoxUniverse Gravity Simulator 3D
PriceFreeFree
Rating4.8 (26 ratings) — better4.0 (143 ratings)
Positive reviews96.0% of reviews — better42.9% of reviews
Number of ratings26143 — better
Update frequencyEvery 5 monthsEvery 5 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size10 MB235 MB
Age rating4+4+
DeveloperGianluca CapraroKUNHAR GAMES LTD

Customer experience

Grav Box

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews25 reviews
Positive96.0%
Neutral0.0%
Negative4.0%

Universe Gravity Simulator 3D

All ratings136 ratings
Positive75.0%
Neutral3.7%
Negative21.3%
Written reviews7 reviews
Positive42.9%
Neutral28.6%
Negative28.6%

In-app purchases

10 purchases

Grav Box

One-time10
  • Gold Blocks (100) Pack$0.99
  • Light Portal$0.99
  • Dark Portal$0.99
Show 7 more
  • Grav Box$0.99
  • Midnight$0.99
  • Daybreak$0.99
  • Beach$0.99
  • Jungle$0.99
  • Mist$0.99
  • Gold Blocks (1000) Pack$4.99
1 purchases

Universe Gravity Simulator 3D

One-time1
  • Remove Ads$2.99

Questions

Is Grav Box free?
Grav Box is free to download, with in-app purchases available.
Is Universe Gravity Simulator 3D free?
Universe Gravity Simulator 3D is free to download, with in-app purchases available.
Which has better reviews, Grav Box or Universe Gravity Simulator 3D?
Grav Box is rated higher. Grav Box averages 4.8 out of 5 from 26 ratings, while Universe Gravity Simulator 3D averages 4.0 from 143 ratings.
Do Grav Box or Universe Gravity Simulator 3D have ads?
Grav Box shows ads; Universe Gravity Simulator 3D does not.
Which is updated more often, Grav Box or Universe Gravity Simulator 3D?
Grav Box ships an update every 5 months, and Universe Gravity Simulator 3D every 5 weeks. Most recently, Grav Box was updated on November 2, 2026 and Universe Gravity Simulator 3D on November 3, 2026.

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