# Planet simulation vs Gravity's Reign

The clearest difference is ads: Gravity's Reign at none against Planet simulation's shown. Gravity's Reign also leads on update cadence (every 3 weeks vs every 8 months) and rating (4.2 vs 3.9). Planet simulation's advantage is ratings volume (165 vs 5). On price, review sentiment, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Gravity's Reign holds the better App Store score, 4.2 against 3.9. That said, the two scores are not equally well evidenced: Planet simulation has 165 ratings behind it against 5, so its average is the more settled of the two. Written reviews split almost evenly too, at 74% and 75% positive.

Planet simulation ships an update every 8 months, Gravity's Reign every 3 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Planet simulation | Gravity's Reign |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (165 ratings)](https://appshunter.io/ios/app/planet-simulation/id356146219/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/gravitys-reign/id1177794641/reviews)** |
| Number of ratings | **165** | 5 |
| Positive reviews | 74.3% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 15 MB | 52 MB |
| Requires iOS | 13.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DAN-BALL](https://appshunter.io/developer/348592290) | [Borne Proud Inc](https://appshunter.io/developer/1177793770) |

## 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


### Gravity's Reign

[App page](https://appshunter.io/ios/app/gravitys-reign/id1177794641)

Master projectile trajectories by utilizing gravitational forces to hit targets. This physics-based puzzle game features procedurally generated levels for endless replayability and offers both single-player challenges and head-to-head multiplayer modes.

**Highlights:** Curve projectiles with gravity, Utilize gravitational obstacles, Procedurally generated levels, Infinite replayability, Single-player mode, Head-to-head multiplayer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Planet simulation free?

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

### Is Gravity's Reign free?

Gravity's Reign is free to download, with no in-app purchases.

### Which has better reviews, Planet simulation or Gravity's Reign?

Gravity's Reign is rated higher. Planet simulation averages 3.9 out of 5 from 165 ratings, while Gravity's Reign averages 4.2 from 5 ratings.

### Do Planet simulation or Gravity's Reign have ads?

Planet simulation shows ads; Gravity's Reign does not.

### Which is updated more often, Planet simulation or Gravity's Reign?

Planet simulation ships an update every 8 months, and Gravity's Reign every 3 weeks. Most recently, Planet simulation was updated on October 9, 2026 and Gravity's Reign on October 7, 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.*