Atom Fusion vs Space Crash Simulator
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Atom Fusion
A casual tapping game where atoms fuse to create new elements. Research new atoms with a particle accelerator to discover all 118 elements of the periodic table.
- Atom fusion gameplay
- Discover all 118 elements
- Particle accelerator research
- Casual tapping mechanics
- Progressive discovery
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Atom Fusion is a simple tapping game in which atoms collide with each other and fuse into new ones. Using a particle accelerator, you can research new atoms and progress faster to discover all 118 elements in the periodic table.
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.
- 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
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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
Screenshots
Verdict
The clearest difference is ads: Atom Fusion at none against Space Crash Simulator's shown. Atom Fusion also leads on review sentiment (100% vs 81%) and iOS requirement (11.0 vs 15.0). Space Crash Simulator's advantage is ratings volume (723 vs 6). On price, rating, update cadence and in-app purchases 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
Both are free to download. Atom Fusion sells 1 one-off in-app purchase and Space Crash Simulator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.3 for Atom Fusion against 4.5 for Space Crash Simulator. That said, the two scores are not equally well evidenced: Space Crash Simulator has 723 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 100% of Atom Fusion's written reviews are positive against 81% of Space Crash Simulator's.
Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Atom Fusion | Space Crash Simulator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (6 ratings) | 4.5 (723 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 81.2% of reviews |
| Number of ratings | 6 | 723 — better |
| Update frequency | Every 5 days | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 254 MB |
| Age rating | 4+ | 4+ |
| Developer | Dennis van Oosten | WPC |
Customer experience
Atom Fusion
Space Crash Simulator
Bugs and requests
Atom Fusion
Not enough reviews yet to summarise bugs or 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
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- Enable free camera feature
- Improve collision and heating effects
In-app purchases
Atom Fusion
- Remove Ads$0.99
Space Crash Simulator
- Premium$4.99
Questions
Is Atom Fusion free?
Is Space Crash Simulator free?
Which has better reviews, Atom Fusion or Space Crash Simulator?
Do Atom Fusion or Space Crash Simulator have ads?
Which is updated more often, Atom Fusion or Space Crash Simulator?
Other comparisons
