# Go Space vs Solar System Sim

Go Space and Solar System Sim both sit at 4.5 stars, but that hides the real split: 80% of Solar System Sim's written reviews are positive against 50% of Go Space's. Solar System Sim also leads on update cadence (every 4 days vs every 3 months) and ratings volume (4.3K vs 4). Go Space's advantage is iOS requirement (13.0 vs 15.0). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Go Space sells 2 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.

On the App Store both sit at effectively the same score — 4.5 for Go Space against 4.5 for Solar System Sim. That said, the two scores are not equally well evidenced: Solar System Sim has 4.3K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 50% of Go Space's written reviews are positive against 80% of Solar System Sim's.

Go Space ships an update every 3 months, Solar System Sim every 4 days. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Go Space | Solar System Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/go-space-spaceship-builder/id1279141998/reviews) | [4.5 (4.3K ratings)](https://appshunter.io/ios/app/solar-system-sim/id6447612221/reviews) |
| Number of ratings | 4 | **4.3K** |
| Positive reviews | 50.0% of reviews | **80.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 183 MB | 532 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JINOH Cho](https://appshunter.io/developer/893107640) | [WPC](https://appshunter.io/developer/1681830786) |

## What reviewers say

### Go Space

[App page](https://appshunter.io/ios/app/go-space-spaceship-builder/id1279141998)

Pilot a spaceship to explore outer space and colonize new worlds. Earn donations by traveling further, and upgrade your ship's defense, speed, and sensors. Customize your vessel with various parts and compete on global leaderboards.

**Highlights:** Spaceship upgrades, Ship customization, Outer space exploration, Global leaderboards, Simple tap controls, Resource crisis theme

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 99 Diamonds. | $0.99 | one-time |
| Buy 700 Diamonds. | $4.99 | one-time |


### 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 Go Space free?

Go Space 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, Go Space or Solar System Sim?

Go Space and Solar System Sim are both rated 4.5 out of 5 on the App Store, from 4 and 4.3K ratings respectively.

### Do Go Space or Solar System Sim have ads?

Both Go Space and Solar System Sim show ads.

### Which is updated more often, Go Space or Solar System Sim?

Go Space ships an update every 3 months, and Solar System Sim every 4 days. Most recently, Go Space was updated on October 14, 2026 and Solar System Sim on October 17, 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.*