# GPT Solar System Explorer vs LittleMind

The clearest difference is in-app purchases: LittleMind at none against GPT Solar System Explorer's 5. GPT Solar System Explorer's advantage is update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. GPT Solar System Explorer sells 5 in-app purchases, starting at $5.99 per month. LittleMind asks for nothing beyond the download.

GPT Solar System Explorer ships an update every 2 weeks, LittleMind monthly. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | GPT Solar System Explorer | LittleMind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (95 ratings)](https://appshunter.io/ios/app/gpt-solar-system-explorer/id6743086286/reviews)** | — |
| Number of ratings | **95** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Subscription | — |
| Size | 288 MB | 36 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Apic Ways](https://appshunter.io/developer/1635604961) | [Cyrille Hounvio](https://appshunter.io/developer/1521140639) |

## What reviewers say

### 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 |


### LittleMind

[App page](https://appshunter.io/ios/app/littlemind/id6762573937)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GPT Solar System Explorer free?

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

### Is LittleMind free?

LittleMind is free to download, with no in-app purchases.

### Do GPT Solar System Explorer or LittleMind have ads?

Neither GPT Solar System Explorer nor LittleMind shows ads.

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

GPT Solar System Explorer ships an update every 2 weeks, and LittleMind monthly. Most recently, GPT Solar System Explorer was updated on October 25, 2026 and LittleMind on October 16, 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.*