# Arloon Solar System vs DIY Solar System

The clearest difference is review sentiment: DIY Solar System at 100% against Arloon Solar System's 0%. DIY Solar System also leads on price (Free vs $2.99) and rating (4.5 vs 2.3). Arloon Solar System's advantage is iOS requirement (9.0 vs 12.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

DIY Solar System is free to download; Arloon Solar System costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DIY Solar System holds the better App Store score, 4.5 against 2.3. That said, the two scores are not equally well evidenced: DIY Solar System has 17 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 100% of DIY Solar System's.

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

## The numbers

| Metric | Arloon Solar System | DIY Solar System |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [2.3 (3 ratings)](https://appshunter.io/ios/app/arloon-solar-system/id972569888/reviews) | **[4.5 (17 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews)** |
| Number of ratings | 3 | **17** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 297 MB | 180 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [WANT2B S.L.](https://appshunter.io/developer/1123707383) | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) |

## 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


### DIY Solar System

[App page](https://appshunter.io/ios/app/diy-solar-system/id1644242890)

Explore the solar system with interactive activities and an augmented reality planet walk. Learn about space travel, design a moon base, and identify celestial objects. Developed by leading science institutions, this app makes learning about space engaging for families and educators.

**Highlights:** Interactive space activities, Augmented reality planet walk, Design a moon base, Grow a space garden, Control a Mars rover, In or Out space game, NASA imagery

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Arloon Solar System free?

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

### Is DIY Solar System free?

DIY Solar System is free to download, with no in-app purchases.

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

DIY Solar System is rated higher. Arloon Solar System averages 2.3 out of 5 from 3 ratings, while DIY Solar System averages 4.5 from 17 ratings.

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

Neither Arloon Solar System nor DIY Solar System shows ads.

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

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