# Intergalactic Solar System vs DIY Solar System

The clearest difference is rating: DIY Solar System at 4.5 against Intergalactic Solar System's 4.0. DIY Solar System also leads on in-app purchases (none vs 1) and review sentiment (100% vs 70%). Intergalactic Solar System's advantage is update cadence (monthly vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Intergalactic Solar System sells 1 one-off in-app purchase. DIY Solar System asks for nothing beyond the download.

DIY Solar System holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 25 and 16 respectively. Written reviews point the same way: 70% of Intergalactic Solar System's written reviews are positive against 100% of DIY Solar System's.

Intergalactic Solar System ships an update monthly, DIY Solar System every 2 months. The most recent releases landed on September 22, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Intergalactic Solar System | DIY Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (25 ratings)](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254/reviews) | **[4.5 (16 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews)** |
| Number of ratings | **25** | 16 |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 355 MB | 180 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) |

## What reviewers say

### Intergalactic Solar System

[App page](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254)

Explore planets, moons, and countries in this space simulator mini-game. Learn astronomy and geography aligned with next-generation science standards. Discover the Milky Way galaxy and assess your knowledge through engaging gameplay.

**Highlights:** Planet and moon exploration, Country geography learning, Milky Way galaxy view, Common Core aligned curriculum, Proficiency assessment, Engaging gameplay levels

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access to Full Game | $3.99 | one-time |


### 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 Intergalactic Solar System free?

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

### Is DIY Solar System free?

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

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

DIY Solar System is rated higher. Intergalactic Solar System averages 4.0 out of 5 from 25 ratings, while DIY Solar System averages 4.5 from 16 ratings.

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

Neither Intergalactic Solar System nor DIY Solar System shows ads.

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

Intergalactic Solar System ships an update monthly, and DIY Solar System every 2 months. Most recently, Intergalactic Solar System was updated on September 22, 2026 and DIY Solar System on June 3, 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.*