# Atom Runner vs Solar System Sim

The clearest difference is rating: Atom Runner at 5.0 against Solar System Sim's 4.5. Atom Runner also leads on in-app purchases (none vs 5) and review sentiment (100% vs 80%). Solar System Sim's advantage is ratings volume (4.2K vs 5). On price, ads and device support there is nothing between them.

Both are free to download. Solar System Sim sells 5 one-off in-app purchases. Atom Runner asks for nothing beyond the download.

Atom Runner holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Solar System Sim has 4.2K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Atom Runner's written reviews are positive against 80% of Solar System Sim's.

Atom Runner ships an update every 4 days, Solar System Sim every 2 weeks. The most recent releases landed on September 13, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Atom Runner | Solar System Sim |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/atom-runner-quantum-escape/id1538220660/reviews)** | [4.5 (4.2K ratings)](https://appshunter.io/ios/app/solar-system-sim/id6447612221/reviews) |
| Number of ratings | 5 | **4.2K** |
| Positive reviews | **100.0% of reviews** | 79.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 112 MB | 514 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [heroRocket() Games LLC](https://appshunter.io/developer/1435200791) | [WPC](https://appshunter.io/developer/1681830786) |

## What reviewers say

### Atom Runner

[App page](https://appshunter.io/ios/app/atom-runner-quantum-escape/id1538220660)

Race through a surreal quantum universe as a sub-atomic hero collecting particles. Utilize double-jump abilities to navigate a 2D side-scrolling landscape and achieve the highest score in this endless runner.

**Highlights:** Infinite runner gameplay, Collect quantum particles, Double-jump ability, 2D side-scroller format, Hyper-realistic graphics, High score challenges

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Atom Runner free?

Atom Runner is free to download, with no in-app purchases.

### Is Solar System Sim free?

Solar System Sim is free to download, with in-app purchases available.

### Which has better reviews, Atom Runner or Solar System Sim?

Atom Runner is rated higher. Atom Runner averages 5.0 out of 5 from 5 ratings, while Solar System Sim averages 4.5 from 4.2K ratings.

### Do Atom Runner or Solar System Sim have ads?

Both Atom Runner and Solar System Sim show ads.

### Which is updated more often, Atom Runner or Solar System Sim?

Atom Runner ships an update every 4 days, and Solar System Sim every 2 weeks. Most recently, Atom Runner was updated on September 13, 2026 and Solar System Sim on September 30, 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.*