# GPT Solar System Explorer vs Cosmic Hub

The clearest difference is update cadence: Cosmic Hub at every 2 days against GPT Solar System Explorer's every 2 weeks. On price, ads, in-app purchases and device support 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 and Cosmic Hub sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

GPT Solar System Explorer ships an update every 2 weeks, Cosmic Hub every 2 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | GPT Solar System Explorer | Cosmic Hub |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Subscription | — |
| Size | 288 MB | 190 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) | [plusultra](https://appshunter.io/developer/1896739684) |

## 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 |


### Cosmic Hub

[App page](https://appshunter.io/ios/app/cosmic-hub/id6770396244)

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ELL-500 | $3.49 | one-time |
| Crew 1-Month Expedition Pass | $5.00 | one-time |
| ELL-1000 | $7.00 | one-time |
| ELL-2000 | $14.00 | one-time |
| Plus 3-Month Expedition Pass | $15.00 | one-time |
| ELL-4000 | $28.00 | one-time |
| Ultra 6-Month Expedition Pass | $30.00 | one-time |
| ELL-8000 | $56.00 | one-time |
| Cosmic 12-Month Expedition Pass | $60.00 | one-time |


## Frequently asked questions

### Is GPT Solar System Explorer free?

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

### Is Cosmic Hub free?

Cosmic Hub is free to download, with in-app purchases available.

### Do GPT Solar System Explorer or Cosmic Hub have ads?

Neither GPT Solar System Explorer nor Cosmic Hub shows ads.

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

GPT Solar System Explorer ships an update every 2 weeks, and Cosmic Hub every 2 days. Most recently, GPT Solar System Explorer was updated on October 25, 2026 and Cosmic Hub on October 28, 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.*