# Spaceflight Simulator vs Solar System Sim

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.

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.

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.

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.

## The numbers

| Metric | Spaceflight Simulator | Solar System Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (97K ratings)](https://appshunter.io/ios/app/spaceflight-simulator/id1308057272/reviews)** | [4.5 (4.1K ratings)](https://appshunter.io/ios/app/solar-system-sim/id6447612221/reviews) |
| Number of ratings | **97K** | 4.1K |
| Positive reviews | **85.5% of reviews** | 79.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 172 MB | 512 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Spaceflight Simulator UK Ltd](https://appshunter.io/developer/1308057271) | [WPC](https://appshunter.io/developer/1681830786) |

## What reviewers say

### Spaceflight Simulator

[App page](https://appshunter.io/ios/app/spaceflight-simulator/id1308057272)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skins Expansion | $2.99 | one-time |
| Full Version | $3.99 | one-time |
| Redstone + Atlas Pack | $3.99 | one-time |
| Parts Expansion | $4.99 | one-time |
| Infinite Area Expansion | $4.99 | one-time |
| Expansion Bundle | $7.99 | one-time |
| Cheats Expansion | $9.99 | one-time |
| Full Bundle Upgrade | $9.99 | one-time |
| Full Bundle | $11.99 | one-time |
| Full Bundle | $14.99 | one-time |

**What reviewers like**

- 🚀 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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**

- 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


### Solar System Sim

[App page](https://appshunter.io/ios/app/solar-system-sim/id6447612221)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HD Mars | $2.99 | one-time |
| HD Earth | $2.99 | one-time |
| HD Moon | $2.99 | one-time |
| No-ads | $3.99 | one-time |
| HD 3-body pack | $6.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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**

- 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


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*