# Solar System Journey vs Intergalactic Solar System

The clearest difference is in-app purchases: Solar System Journey at none against Intergalactic Solar System's 1. Solar System Journey also leads on rating (4.3 vs 4.0) and ratings volume (84 vs 25). Intergalactic Solar System's advantage is ads (none vs shown) and update cadence (monthly vs every 83 months). On price, device support and iOS requirement there is nothing between them.

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

Solar System Journey holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 84 and 25 respectively.

Solar System Journey ships an update every 83 months, Intergalactic Solar System monthly. The most recent releases landed on October 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Solar System Journey | Intergalactic Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (84 ratings)](https://appshunter.io/ios/app/solar-system-journey-school/id1021604731/reviews)** | [4.0 (25 ratings)](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254/reviews) |
| Number of ratings | **84** | 25 |
| Positive reviews | — | 70.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 83 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 15 MB | 355 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [John Rouda](https://appshunter.io/developer/396597129) | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) |

## What reviewers say

### Solar System Journey

[App page](https://appshunter.io/ios/app/solar-system-journey-school/id1021604731)

Explore our solar system with detailed facts and images for each planet. Features animated orbits and is specifically designed for educational use in schools.

**Highlights:** Detailed planet facts, Close-up planet images, Animated planet orbits, School-focused version, Covers all major planets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Solar System Journey free?

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

### Is Intergalactic Solar System free?

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

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

Solar System Journey is rated higher. Solar System Journey averages 4.3 out of 5 from 84 ratings, while Intergalactic Solar System averages 4.0 from 25 ratings.

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

Solar System Journey shows ads; Intergalactic Solar System does not.

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

Solar System Journey ships an update every 83 months, and Intergalactic Solar System monthly. Most recently, Solar System Journey was updated on October 30, 2026 and Intergalactic Solar System on October 9, 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.*