# Space 4D+ vs DIY Solar System

The clearest difference is review sentiment: DIY Solar System at 100% against Space 4D+'s 37%. DIY Solar System also leads on rating (4.5 vs 3.4). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. 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 3.4. Both are backed by a comparable volume of ratings — 46 and 16 respectively. Written reviews point the same way: 37% of Space 4D+'s written reviews are positive against 100% of DIY Solar System's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Space 4D+ | DIY Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (46 ratings)](https://appshunter.io/ios/app/space-4d-plus/id1018109847/reviews) | **[4.5 (16 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews)** |
| Number of ratings | **46** | 16 |
| Positive reviews | 36.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 300 MB | 180 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Octagon Studio Ltd](https://appshunter.io/developer/998405180) | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) |

## 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


### 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 Space 4D+ free?

Space 4D+ is free to download, 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, Space 4D+ or DIY Solar System?

DIY Solar System is rated higher. Space 4D+ averages 3.4 out of 5 from 46 ratings, while DIY Solar System averages 4.5 from 16 ratings.

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

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

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

Space 4D+ ships an update every 2 months, and DIY Solar System every 2 months. Most recently, Space 4D+ was updated on October 2, 2026 and DIY Solar System on October 6, 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.*