# Planet simulation vs Universe Gravity Simulator 3D

The clearest difference is in-app purchases: Planet simulation at none against Universe Gravity Simulator 3D's 1. Planet simulation also leads on review sentiment (74% vs 43%). Universe Gravity Simulator 3D's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 8 months). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Universe Gravity Simulator 3D sells 1 one-off in-app purchase. Planet simulation asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.9 for Planet simulation against 4.0 for Universe Gravity Simulator 3D. Both are backed by a comparable volume of ratings — 165 and 136 respectively. Written reviews are what separate them: 74% of Planet simulation's written reviews are positive against 43% of Universe Gravity Simulator 3D's.

Planet simulation ships an update every 8 months, Universe Gravity Simulator 3D every 5 weeks. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Planet simulation | Universe Gravity Simulator 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (165 ratings)](https://appshunter.io/ios/app/planet-simulation/id356146219/reviews) | **[4.0 (136 ratings)](https://appshunter.io/ios/app/universe-gravity-simulator-3d/id1613476121/reviews)** |
| Number of ratings | **165** | 136 |
| Positive reviews | **74.3% of reviews** | 42.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 15 MB | 235 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DAN-BALL](https://appshunter.io/developer/348592290) | [KUNHAR GAMES LTD](https://appshunter.io/developer/1613476123) |

## What reviewers say

### Planet simulation

[App page](https://appshunter.io/ios/app/planet-simulation/id356146219)

Design and build your own solar system with various stars. Explore the fascinating world of gravity and recreate celestial bodies. A relaxing game for your spare time.

**Highlights:** Create your own solar system, Simulate gravity, Design with various stars, Reproduce celestial bodies, Relaxing gameplay

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Realistic gravity simulation
- 👍 Fun to mess around with
- 🎨 Visually appealing
- 🤖 Good for learning about planetary motion

**What reviewers complain about**

- 🐛 Planets often crash into the sun
- 🔍 Limited features and customization options
- 📢 Distracting ads
- 🤯 Confusing controls and UI

**Reported bugs**

- Planets sometimes disappear or behave erratically
- App crashes or freezes occasionally
- Scaling and scrolling issues

**Requested features**

- Add more celestial objects (black holes, supernovas, etc.)
- Allow for more complex orbits and binary systems
- Implement a save/load feature for solar systems
- Add a tutorial or help section
- Integrate with educational resources on astronomy


### Universe Gravity Simulator 3D

[App page](https://appshunter.io/ios/app/universe-gravity-simulator-3d/id1613476121)

Explore and shape the cosmos in this 3D space simulator. Create galaxies, destroy planets, and engage in epic space battles. Experience realistic physics and stunning visuals as you journey through star realms.

**Highlights:** Realistic physics engine, Dynamic universe creation, Immersive 3D environments, Gravity simulation, Solar system exploration, Interplanetary collisions, Space combat missions

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Planet simulation free?

Planet simulation is free to download, with no in-app purchases.

### Is Universe Gravity Simulator 3D free?

Universe Gravity Simulator 3D is free to download, with in-app purchases available.

### Which has better reviews, Planet simulation or Universe Gravity Simulator 3D?

Universe Gravity Simulator 3D is rated higher. Planet simulation averages 3.9 out of 5 from 165 ratings, while Universe Gravity Simulator 3D averages 4.0 from 136 ratings.

### Do Planet simulation or Universe Gravity Simulator 3D have ads?

Planet simulation shows ads; Universe Gravity Simulator 3D does not.

### Which is updated more often, Planet simulation or Universe Gravity Simulator 3D?

Planet simulation ships an update every 8 months, and Universe Gravity Simulator 3D every 5 weeks. Most recently, Planet simulation was updated on October 9, 2026 and Universe Gravity Simulator 3D on October 14, 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.*