# Space 4D+ vs Intergalactic Solar System

The clearest difference is rating: Intergalactic Solar System at 4.0 against Space 4D+'s 3.4. Intergalactic Solar System also leads on review sentiment (70% vs 37%). Space 4D+'s advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 13.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Intergalactic Solar System sells 1 one-off in-app purchase. Space 4D+ asks for nothing beyond the download.

Intergalactic Solar System holds the better App Store score, 4.0 against 3.4. Both are backed by a comparable volume of ratings — 46 and 25 respectively. Written reviews point the same way: 37% of Space 4D+'s written reviews are positive against 70% of Intergalactic Solar System's.

Space 4D+ ships an update every 2 months, Intergalactic Solar System monthly. The most recent releases landed on October 2, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Space 4D+ | Intergalactic Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (46 ratings)](https://appshunter.io/ios/app/space-4d-plus/id1018109847/reviews) | **[4.0 (25 ratings)](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254/reviews)** |
| Number of ratings | **46** | 25 |
| Positive reviews | 36.8% of reviews | **70.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 300 MB | 355 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Octagon Studio Ltd](https://appshunter.io/developer/998405180) | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) |

## What reviewers say

### Space 4D+

[App page](https://appshunter.io/ios/app/space-4d-plus/id1018109847)

Explore the wonders of space with augmented reality flashcards. This app brings planets, satellites, and space missions to life with interactive 3D models and informative facts. Experience space like never before, engaging for both children and adults.

**Highlights:** Augmented reality space exploration, Interactive 3D models of celestial bodies, Informative facts about planets and missions, Engaging for all ages, Scans printed space cards

**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 Space 4D+ free?

Space 4D+ 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, Space 4D+ or Intergalactic Solar System?

Intergalactic Solar System is rated higher. Space 4D+ averages 3.4 out of 5 from 46 ratings, while Intergalactic Solar System averages 4.0 from 25 ratings.

### Do Space 4D+ or Intergalactic Solar System have ads?

Neither Space 4D+ nor Intergalactic Solar System shows ads.

### Which is updated more often, Space 4D+ or Intergalactic Solar System?

Space 4D+ ships an update every 2 months, and Intergalactic Solar System monthly. Most recently, Space 4D+ was updated on October 2, 2026 and Intergalactic Solar System on September 22, 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.*