# Arloon Solar System vs Solar System Viewer

The clearest difference is review sentiment: Solar System Viewer at 83% against Arloon Solar System's 0%. Solar System Viewer also leads on rating (4.4 vs 2.3) and ratings volume (28 vs 3). Arloon Solar System's advantage is in-app purchases (none vs 4) and iOS requirement (9.0 vs 26.0). On price, update cadence, ads and monetization model there is nothing between them.

Arloon Solar System costs $2.99 and Solar System Viewer $2.99 up front. Solar System Viewer sells 4 one-off in-app purchases. Arloon Solar System asks for nothing beyond the download.

Solar System Viewer holds the better App Store score, 4.4 against 2.3. That said, the two scores are not equally well evidenced: Solar System Viewer has 28 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Arloon Solar System's written reviews are positive against 83% of Solar System Viewer's.

Arloon Solar System ships an update every 3 months, Solar System Viewer every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Arloon Solar System | Solar System Viewer |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/arloon-solar-system/id972569888/reviews) | **[4.4 (28 ratings)](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445/reviews)** |
| Number of ratings | 3 | **28** |
| Positive reviews | 0.0% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 297 MB | 22 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | +4 | 4+ |
| Developer | [WANT2B S.L.](https://appshunter.io/developer/1123707383) | [BLUE COMET LABS LLC](https://appshunter.io/developer/1492055170) |

## What reviewers say

### Arloon Solar System

[App page](https://appshunter.io/ios/app/arloon-solar-system/id972569888)

Explore the solar system and Earth's phenomena through interactive 3D models and engaging activities. This app is designed for students aged 6-13 to foster understanding of astronomy and space concepts.

**Highlights:** Interactive 3D solar system models, Augmented Reality exploration, Explanations of celestial bodies, Earth's rotation, translation, and seasons, Moon phases and eclipses, Self-correcting quizzes, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


### Solar System Viewer

[App page](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445)

Explore and simulate the orbits of planets in our solar system. This app allows you to speed up or slow down time, travel to any date, and view planetary positions. It also offers widgets for your home screen and Apple Watch complications.

**Highlights:** Simulate planetary orbits, Adjust time speed, Time travel to specific dates, Home screen widgets, Apple Watch integration, View planet overviews

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Io Tip | $1.99 | one-time |
| Europa Tip | $3.99 | one-time |
| Ganymede Tip | $5.99 | one-time |
| Callisto Tip | $9.99 | one-time |


## Frequently asked questions

### Is Arloon Solar System free?

Arloon Solar System costs $2.99, with no in-app purchases.

### Is Solar System Viewer free?

Solar System Viewer costs $2.99, and also offers in-app purchases.

### Which has better reviews, Arloon Solar System or Solar System Viewer?

Solar System Viewer is rated higher. Arloon Solar System averages 2.3 out of 5 from 3 ratings, while Solar System Viewer averages 4.4 from 28 ratings.

### Do Arloon Solar System or Solar System Viewer have ads?

Neither Arloon Solar System nor Solar System Viewer shows ads.

### Which is updated more often, Arloon Solar System or Solar System Viewer?

Arloon Solar System ships an update every 3 months, and Solar System Viewer every 2 months. Most recently, Arloon Solar System was updated on October 24, 2026 and Solar System Viewer on October 24, 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.*