# Solar System AR 4D vs DIY Solar System

The clearest difference is in-app purchases: DIY Solar System at none against Solar System AR 4D's 3. DIY Solar System also leads on update cadence (every 2 months vs every 46 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Solar System AR 4D ships an update every 46 months, DIY Solar System every 2 months. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Solar System AR 4D | DIY Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (17 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews)** |
| Number of ratings | — | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 46 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 122 MB | 180 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ibrahim Amer](https://appshunter.io/developer/1054899889) | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) |

## What reviewers say

### Solar System AR 4D

[App page](https://appshunter.io/ios/app/solar-system-ar-4d/id1593970513)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock | $5.99 | 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 Solar System AR 4D free?

Solar System AR 4D 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.

### Do Solar System AR 4D or DIY Solar System have ads?

Neither Solar System AR 4D nor DIY Solar System shows ads.

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

Solar System AR 4D ships an update every 46 months, and DIY Solar System every 2 months. Most recently, Solar System AR 4D was updated on October 7, 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.*