# Solar System by Clementoni vs GPT Solar System Explorer

The clearest difference is review sentiment: Solar System by Clementoni at 100% against GPT Solar System Explorer's 0%. Solar System by Clementoni also leads on monetization model (free vs subscription) and iOS requirement (11.0 vs 15.0). GPT Solar System Explorer's advantage is rating (4.7 vs 3.6) and update cadence (every 2 weeks vs every 24 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Solar System by Clementoni sells 1 one-off in-app purchase and GPT Solar System Explorer sells 5 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

GPT Solar System Explorer holds the better App Store score, 4.7 against 3.6. That said, the two scores are not equally well evidenced: GPT Solar System Explorer has 96 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 100% of Solar System by Clementoni's written reviews are positive against 0% of GPT Solar System Explorer's, so the app with the better star average is not the one people write more warmly about.

Solar System by Clementoni ships an update every 24 months, GPT Solar System Explorer every 2 weeks. The most recent releases landed on November 5, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Solar System by Clementoni | GPT Solar System Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (5 ratings)](https://appshunter.io/ios/app/solar-system-by-clementoni/id1437130477/reviews) | **[4.7 (96 ratings)](https://appshunter.io/ios/app/gpt-solar-system-explorer/id6743086286/reviews)** |
| Number of ratings | 5 | **96** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 weeks** |
| Monetization | **Free** | Subscription |
| Size | 438 MB | 288 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Clementoni S.p.A.](https://appshunter.io/developer/575135209) | [Apic Ways](https://appshunter.io/developer/1635604961) |

## What reviewers say

### Solar System by Clementoni

[App page](https://appshunter.io/ios/app/solar-system-by-clementoni/id1437130477)

Embark on a space journey to explore the solar system, from the Sun to distant planets. Discover celestial bodies, learn science facts, and compare planetary features. Test your knowledge with an interactive quiz.

**Highlights:** Space travel simulation, Planet discovery, Science facts and trivia, Planetary size and feature comparison, Interactive learning quiz

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sistema Solare Full | $0.99 | one-time |


### GPT Solar System Explorer

[App page](https://appshunter.io/ios/app/gpt-solar-system-explorer/id6743086286)

Explore our Solar System in an interactive 3D environment powered by AI. Discover stunning images and videos from space agencies, and ask your AI guide anything about the cosmos. Perfect for curious minds of all ages.

**Highlights:** Interactive 3D Solar System model, AI-powered cosmic guide, NASA, SpaceX, ESA imagery & videos, Planet and mission details, Voice-activated Q&A, Intuitive controls for all ages

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $5.99 | per month |
| Monthly Super Pro Subscription | $19.99 | per month |
| Monthly Ultra Pro Subscription | $29.99 | per month |
| Yearly Pro Subscription | $39.99 | per year |
| AI coins | $5.99 | one-time |


## Frequently asked questions

### Is Solar System by Clementoni free?

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

### Is GPT Solar System Explorer free?

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

### Which has better reviews, Solar System by Clementoni or GPT Solar System Explorer?

GPT Solar System Explorer is rated higher. Solar System by Clementoni averages 3.6 out of 5 from 5 ratings, while GPT Solar System Explorer averages 4.7 from 96 ratings.

### Do Solar System by Clementoni or GPT Solar System Explorer have ads?

Neither Solar System by Clementoni nor GPT Solar System Explorer shows ads.

### Which is updated more often, Solar System by Clementoni or GPT Solar System Explorer?

Solar System by Clementoni ships an update every 24 months, and GPT Solar System Explorer every 2 weeks. Most recently, Solar System by Clementoni was updated on November 5, 2026 and GPT Solar System Explorer on November 4, 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.*