# Galaxy Space Simulator 3D vs Gravity OB1

The clearest difference is update cadence: Gravity OB1 at every 5 days against Galaxy Space Simulator 3D's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Galaxy Space Simulator 3D sells 13 one-off in-app purchases and Gravity OB1 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Galaxy Space Simulator 3D ships an update every 5 months, Gravity OB1 every 5 days. The most recent releases landed on October 8, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Galaxy Space Simulator 3D | Gravity OB1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (457 ratings)](https://appshunter.io/ios/app/galaxy-space-simulator-3d/id1236414128/reviews)** | — |
| Number of ratings | **457** | — |
| Positive reviews | 39.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 219 MB | 25 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krassimir Kondarev](https://appshunter.io/developer/1236414127) | [Q8blog](https://appshunter.io/developer/380669318) |

## What reviewers say

### Galaxy Space Simulator 3D

[App page](https://appshunter.io/ios/app/galaxy-space-simulator-3d/id1236414128)

Create and explore your own universe with a realistic 3D space simulator. Witness celestial bodies orbit, form asteroid belts, and customize planets with various textures and skins. Save, load, and share your cosmic creations with others.

**Highlights:** Realistic 3D graphics, Physics-based gravity simulation, Planet and star customization, Save, load, and pause functionality, Share creations online, Unlockable content through achievements

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| High Res Ceres | $0.99 | one-time |
| High Res Jupiter | $0.99 | one-time |
| Remove ads | $0.99 | one-time |
| Skybox deep space | $0.99 | one-time |
| Skybox green nebula | $0.99 | one-time |
| High Res Earth | $1.99 | one-time |
| High Res Night Earth | $1.99 | one-time |
| Add 5 more planets | $2.99 | one-time |
| Skybox nebulas clash | $2.99 | one-time |
| Unlock asteroid belts | $3.99 | one-time |
| Premium planets bundle | $3.99 | one-time |
| Add 10 more planets | $4.99 | one-time |
| Unlock every feature in game! | $14.99 | one-time |

**What reviewers like**

- 🚀 Fast loading
- 👍 Good graphics
- 💡 Motivating
- 👍 Fun to play

**What reviewers complain about**

- 🐛 Slow loading
- 🐛 Buggy
- 🐛 Difficult to use
- 🐛 Limits on features

**Reported bugs**

- Perpetual loading screen
- Planets and systems not functioning properly
- Zooming and navigation issues
- Frequent crashes and app not launching

**Requested features**

- Add a loading bar
- Improve navigation and controls
- Increase planet and system creation limits
- Add more advanced features (black holes, wormholes, etc.)


### Gravity OB1

[App page](https://appshunter.io/ios/app/gravity-ob1/id6788852525)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game | $3.99 | one-time |


## Frequently asked questions

### Is Galaxy Space Simulator 3D free?

Galaxy Space Simulator 3D 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 Galaxy Space Simulator 3D or Gravity OB1 have ads?

Neither Galaxy Space Simulator 3D nor Gravity OB1 shows ads.

### Which is updated more often, Galaxy Space Simulator 3D or Gravity OB1?

Galaxy Space Simulator 3D ships an update every 5 months, and Gravity OB1 every 5 days. Most recently, Galaxy Space Simulator 3D was updated on October 8, 2026 and Gravity OB1 on September 28, 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.*