Comparison

Spaceflight Simulator vs Solar System Sim

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

Head to head
About

Spaceflight Simulator

Build and launch rockets to explore a realistic, open universe. Experience space exploration with accurate physics and a vast, explorable solar system.

Highlights
  • Build custom rockets
  • Realistic orbital mechanics
  • Explore a scaled universe
  • Visit planets and moons
  • Open-world space exploration
  • Real-life physics simulation
Read full description

This game is about space explorations, its about building your own rocket, and going out to explore and see whats out there, all while following real life physics. • Realistically scaled universe, with planets up to hundreds of kilometers in size and millions of kilometers of space between them. • Realistic orbital mechanics • Open universe, if you see something in the distance, you can go there, no limits, no invisible walls. Current planets: Mercury. Venus. Earth. Moon. Mars. Phobos. Deimos.

About

Solar System Sim

Simulate and explore celestial bodies within our solar system and beyond. Create your own solar systems, experiment with gravity and physics, and observe orbital mechanics in action.

Highlights
  • Explore planets and moons
  • Visit nearby stars
  • Create custom solar systems
  • Gravity and physics simulation
  • Recalculate orbits
  • Newton's laws implementation
Features
Read full description

Zoom from a planet's surface out to distant galaxies, then reshape the whole system with your own hands. Solar System Sim is a real-time gravity sandbox built on Newton's laws and real astronomical data. Every body you add, move or destroy recalculates the orbits of everything else, live. • Smash worlds together: impact craters carve into the surface, firestorms sweep the globe, and glowing debris rains back down. • Build your own universe: add planets, moons, asteroids and comets with their own size, mass and looks, or customise the ones already there. • Land anywhere: drop to a first-person view on any planet's surface and experience its environment. • Sculpt rings: add particle rings and watch gravity shape them in real time. • Witness real eclipses: solar and lunar, with real-world astronomical precision. • Follow comets: watch them streak past and interact with the bodies they meet. • Leave the Solar System: travel to remarkable nearby stars and find them within the Milky Way. • Feel the scale: see the true vastness of space, from a pebble-sized moon to the nearest galaxies. Whether you're here to learn how gravity really works or just to break planets with it, explore at your own pace. Start your cosmic adventure with Solar System Sim.

Screenshots

Spaceflight Simulator4 screens
Solar System Sim4 screens

Verdict

The call

The clearest difference is ads: Spaceflight Simulator at none against Solar System Sim's shown. Spaceflight Simulator also leads on rating (4.8 vs 4.5) and ratings volume (97K vs 4.1K). On price, review sentiment, in-app purchases and monetization model 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. Spaceflight Simulator sells 10 one-off in-app purchases and Solar System Sim sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spaceflight Simulator holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Spaceflight Simulator has 97K ratings behind it against 4.1K, so its average is the more settled of the two. Written reviews point the same way: 86% of Spaceflight Simulator's written reviews are positive against 80% of Solar System Sim's.

UpkeepUpdate frequency

Spaceflight Simulator ships an update every 9 days, Solar System Sim every 3 weeks. The most recent releases landed on September 25, 2026 and September 24, 2026 respectively.

Scorecard4 real differences · 6 level
Spaceflight Simulator versus Solar System Sim: the parameters behind the verdict, then further details
ParameterSpaceflight SimulatorSolar System Sim
PriceFreeFree
Rating4.8 (97K ratings) — better4.5 (4.1K ratings)
Positive reviews85.7% of reviews — better79.9% of reviews
Number of ratings97K — better4.1K
Update frequencyEvery 9 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size172 MB512 MB
Age rating4+4+
DeveloperSpaceflight Simulator UK LtdWPC

Customer experience

Spaceflight Simulator

All ratings97,457 ratings
Positive96.3%
Neutral1.7%
Negative2.0%
Written reviews4,740 reviews
Positive85.7%
Neutral5.0%
Negative9.3%

Solar System Sim

All ratings4,131 ratings
Positive86.5%
Neutral5.3%
Negative8.2%
Written reviews1,064 reviews
Positive79.9%
Neutral10.2%
Negative9.9%

User reviews

Spaceflight Simulator

From 97K App Store ratings

What we love

  • 🚀 Realistic physics and space simulation
  • 👍 Intuitive controls and easy to learn
  • 🚀 Ability to build complex rockets and spacecraft
  • 👍 No ads or in-app purchases required to play

Room to improve

  • 🐛 Occasional bugs and glitches, especially with large rockets
  • 🔋 Potential performance issues on older devices
  • 🔒 Limited customization and part options in free version
  • 🚀 Docking and rendezvous maneuvers can be very challenging

Solar System Sim

From 4.1K App Store ratings

What we love

  • 🚀 Realistic simulation
  • 🚀 Detailed solar system
  • 🚀 Ability to create custom solar systems
  • 🚀 Impressive graphics
  • 🚀 Frequent updates

Room to improve

  • 🐛 Crashes and glitches
  • 🔋 High battery consumption
  • 💰 Excessive ads
  • 🐛 Saving and loading issues
  • 🐛 Unstable orbits

Bugs and requests

Spaceflight Simulator

Reported bugs

4 issues
  • Rocket parts sometimes clipping through each other
  • Occasional freezing or crashing when launching large rockets
  • Issues with RCS thrusters firing unexpectedly during docking
  • Problems with maintaining stable orbits and transfers

Requested features

6 requests
  • Add more planets, moons, and celestial bodies to explore
  • Implement a career mode or progression system with challenges
  • Allow for more customization of rocket parts and spacecraft
  • Improve docking and rendezvous mechanics to make them more accessible
  • Add the ability to control individual astronauts and perform EVAs
Show 1 more
  • Implement a fuel line system for more efficient staging

Solar System Sim

Reported bugs

5 issues
  • Planets/moons disappearing after saving and loading
  • Bright flashes and screen distortions
  • Planets/objects getting stuck inside stars
  • Crashes when colliding or editing certain objects
  • Inconsistent orbital mechanics and moons ejecting from planets

Requested features

10 requests
  • Add more galaxy and nebula textures
  • Implement realistic supernova effects
  • Allow customization of planet atmospheres and terrain
  • Add binary star systems and rogue planets
  • Introduce a galaxy maker and collision feature
Show 5 more
  • Implement a reverse time lapse option
  • Add more speed options (128x, 256x, etc.)
  • Introduce a population counter and life simulation for planets
  • Allow custom city lights and vegetation on planets
  • Add a Roche limit feature to observe tidal disruption

In-app purchases

10 purchases

Spaceflight Simulator

One-time10
  • Skins Expansion$2.99
  • Full Version$3.99
  • Redstone + Atlas Pack$3.99
Show 7 more
  • Parts Expansion$4.99
  • Infinite Area Expansion$4.99
  • Expansion Bundle$7.99
  • Cheats Expansion$9.99
  • Full Bundle Upgrade$9.99
  • Full Bundle$11.99
  • Full Bundle$14.99
5 purchases

Solar System Sim

One-time5
  • HD Mars$2.99
  • HD Earth$2.99
  • HD Moon$2.99
Show 2 more
  • No-ads$3.99
  • HD 3-body pack$6.99

Questions

Is Spaceflight Simulator free?
Spaceflight Simulator is free to download, with in-app purchases available.
Is Solar System Sim free?
Solar System Sim is free to download, with in-app purchases available.
Which has better reviews, Spaceflight Simulator or Solar System Sim?
Spaceflight Simulator is rated higher. Spaceflight Simulator averages 4.8 out of 5 from 97K ratings, while Solar System Sim averages 4.5 from 4.1K ratings.
Do Spaceflight Simulator or Solar System Sim have ads?
Solar System Sim shows ads; Spaceflight Simulator does not.
Which is updated more often, Spaceflight Simulator or Solar System Sim?
Spaceflight Simulator ships an update every 9 days, and Solar System Sim every 3 weeks. Most recently, Spaceflight Simulator was updated on September 25, 2026 and Solar System Sim on September 24, 2026.

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