Comparison

Space Crash Simulator vs Gravity OB1

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

Head to head
About

Space Crash Simulator

Experience realistic planetary collisions with a powerful physics engine. Customize your own cosmic events by adjusting particle count, velocity, and accuracy, or jump straight into high-energy impacts. This app offers a detailed, physics-based simulation for educational or entertainment purposes.

Highlights
  • Smoothed Particle Hydrodynamics (SPH) simulation
  • Real-time planetary collisions
  • Customizable simulation parameters
  • Setup Mode for scenario creation
  • Adjustable particle count and accuracy
  • Physics-based detailed simulation
Features
Read full description

Smash worlds together and watch them shatter, merge, and melt, driven by real physics, not pre-made animations. Every planet is made of thousands of interacting particles, so every collision is computed live and no two impacts ever look the same. Build your own scenario in Setup Mode: place up to 8 bodies, set their size, density, spin and velocity, then let gravity do the rest. Or dive straight into a head-on collision and watch the debris glow, cool, and form a crust. - True particle physics (SPH), the first of its kind on mobile - Molten impact zones: heat, lava, and cooling crusts - Give planets rings or shred a moon into one with tidal forces (Roche limit) - Protoplanetary disk and colliding-galaxies modes - Black holes that tear planets apart - Custom planet textures from your own photos - Runs on everything: tune particle count, accuracy, and timescale to your device

About

Gravity OB1

Features
Read full description

GRAVITY OB1 turns orbital physics into pure arcade thrill. Sling your ship across a living solar system, ride the pull of planets and black holes, and master gravity itself — because the radar is your only map. THREE GAMES IN ONE - CRUISE — Pure flight. No weapons, no boosters. Just you, gravity, and one perfect slingshot to the target. - COMBAT — Full war. Dodge mines, missiles, and asteroid lasers. Boosters and shields at your side. - ASSAULT — Take the fight to the enemy. Dogfight alien ships with a twin-stick control scheme, lock into orbit around planets, and rain fire on your foes. MASTER GRAVITY Every shot is a puzzle. Planets bend your flight path, black holes swallow the careless, and the sun is always hungry. Learn to read the pull, thread the needle, and let physics carry you home. ORBIT LOCK Fly close to any planet and lock into a stable orbit — circle your target hands-free while your cannons and homing missiles pour fire into it. A gravity-powered gunship run like nothing else on mobile. A FLEET OF SHIPS Unlock 8 distinct ships, from the nimble Needle interceptor to the mighty Bastion battleship. Each flies differently — light and fast, or heavy and armored but harder to pull free of gravity's grip. 100 MISSIONS + SUPER NOVA Ten levels across every mode, each with escalating hazards: moving asteroids, black holes, orbiting worlds, and finally the endless waves of Super Nova. FEATURES - Real gravity physics — no two shots ever feel the same - Three completely different game modes - 8 unlockable ships with unique handling - 8 alien enemy types with distinct behaviors - Homing missiles, cannons, boosters, and shields - A tactical radar you'll learn to live by - Premium hand-crafted art and an original soundtrack Free to play the opening of every mode. Unlock the full campaign once — yours forever. Slingshot in. Master the pull. Clear the system.

Screenshots

Space Crash Simulator4 screens
Gravity OB14 screens

Verdict

The call

The clearest difference is ads: Gravity OB1 at none against Space Crash Simulator's shown. Gravity OB1 also leads on iOS requirement (13.4 vs 15.0). On price, update cadence, in-app purchases 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. Space Crash Simulator sells 1 one-off in-app purchase and Gravity OB1 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 28, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 8 level
Space Crash Simulator versus Gravity OB1: the parameters behind the verdict, then further details
ParameterSpace Crash SimulatorGravity OB1
PriceFreeFree
Rating4.5 (753 ratings) — better—
Positive reviews81.2% of reviews—
Number of ratings753 — better—
Update frequencyEvery 5 daysEvery 5 days
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size254 MB25 MB
Age rating4+4+
DeveloperWPCQ8blog

Bugs and requests

Space Crash Simulator

Reported bugs

2 issues
  • Collision trails not clearing properly
  • Protoplanetary disc mode not working as expected

Requested features

7 requests
  • Add more celestial objects (black holes, stars, etc.)
  • Allow for custom textures and planet/atmosphere customization
  • Improve performance and optimization
  • Add more graphic options and settings
  • Allow for custom rings and moons around planets
Show 2 more
  • Enable free camera feature
  • Improve collision and heating effects

Gravity OB1

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Space Crash Simulator

One-time1
  • Premium$4.99
1 purchases

Gravity OB1

One-time1
  • Unlock Full Game$3.99

Questions

Is Space Crash Simulator free?
Space Crash Simulator is free to download, with in-app purchases available.
Is Gravity OB1 free?
Gravity OB1 is free to download, with in-app purchases available.
Do Space Crash Simulator or Gravity OB1 have ads?
Space Crash Simulator shows ads; Gravity OB1 does not.
Which is updated more often, Space Crash Simulator or Gravity OB1?
Space Crash Simulator ships an update every 5 days, and Gravity OB1 every 5 days. Most recently, Space Crash Simulator was updated on October 28, 2026 and Gravity OB1 on October 14, 2026.

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