# Explain 3D vs Real Solar System

The clearest difference is rating: Explain 3D at 2.7 against Real Solar System's 1.0. Explain 3D also leads on ratings volume (7 vs 1) and iOS requirement (10.0 vs 17.6). Real Solar System's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Explain 3D sells 1 one-off in-app purchase. Real Solar System asks for nothing beyond the download.

Explain 3D holds the better App Store score, 2.7 against 1.0. That said, the two scores are not equally well evidenced: Explain 3D has 7 ratings behind it against 1, so its average is the more settled of the two.

Explain 3D ships an update every 5 months, Real Solar System monthly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Explain 3D | Real Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/explain-3d-explore-the-solar-system-free/id1051361866/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/real-solar-system/id6475644962/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 205 MB | 302 MB |
| Requires iOS | **10.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Explain 3D](https://appshunter.io/developer/1019479194) | [Masaya Nagaoka](https://appshunter.io/developer/1698240335) |

## What reviewers say

### Explain 3D

[App page](https://appshunter.io/ios/app/explain-3d-explore-the-solar-system-free/id1051361866)

Explore the solar system and universe in a 3D environment with realistic models and animations. Learn about planets and spacecrafts, with an option to suggest new simulations. The free version offers basic solar system data, while the full version unlocks more celestial bodies and spacecrafts.

**Highlights:** Interactive 3D environment, Realistic 3D models and animations, Planet and spacecraft descriptions, Engaging educational content, Suggest simulation tool, Full version with expanded content

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all simulations | $3.99 | one-time |


### Real Solar System

[App page](https://appshunter.io/ios/app/real-solar-system/id6475644962)

**In-app purchases:** none


## Frequently asked questions

### Is Explain 3D free?

Explain 3D is free to download, with in-app purchases available.

### Is Real Solar System free?

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

### Which has better reviews, Explain 3D or Real Solar System?

Explain 3D is rated higher. Explain 3D averages 2.7 out of 5 from 7 ratings, while Real Solar System averages 1.0 from 1 ratings.

### Do Explain 3D or Real Solar System have ads?

Neither Explain 3D nor Real Solar System shows ads.

### Which is updated more often, Explain 3D or Real Solar System?

Explain 3D ships an update every 5 months, and Real Solar System monthly. Most recently, Explain 3D was updated on October 22, 2026 and Real 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.*