# Orbits vs GPT Solar System Explorer

The clearest difference is in-app purchases: Orbits at none against GPT Solar System Explorer's 5. Orbits also leads on iOS requirement (10.0 vs 15.0). GPT Solar System Explorer's advantage is ratings volume (90 vs 7). On price, rating, update cadence and ads 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. Orbits asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Orbits against 4.7 for GPT Solar System Explorer. That said, the two scores are not equally well evidenced: GPT Solar System Explorer has 90 ratings behind it against 7, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Orbits | GPT Solar System Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (7 ratings)](https://appshunter.io/ios/app/orbits-a-planet-tracker/id1220543514/reviews) | **[4.7 (90 ratings)](https://appshunter.io/ios/app/gpt-solar-system-explorer/id6743086286/reviews)** |
| Number of ratings | 7 | **90** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | **Free** | Subscription |
| Size | 251 MB | 288 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brandon Slaght](https://appshunter.io/developer/1220543513) | [Apic Ways](https://appshunter.io/developer/1635604961) |

## What reviewers say

### Orbits

[App page](https://appshunter.io/ios/app/orbits-a-planet-tracker/id1220543514)

Explore planets and moons in stunning detail with high-resolution 3D maps and images. Access comprehensive scientific data on geology and orbits, alongside in-depth articles and curated resources for a complete understanding of our solar system.

**Highlights:** 3D high-resolution planet and moon maps, Detailed geology and orbit information, High-resolution images with captions, In-depth articles on planets and moons, Curated external information sources

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Orbits free?

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

### Is GPT Solar System Explorer free?

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

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

GPT Solar System Explorer is rated higher. Orbits averages 4.6 out of 5 from 7 ratings, while GPT Solar System Explorer averages 4.7 from 90 ratings.

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

Neither Orbits nor GPT Solar System Explorer shows ads.

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

Orbits ships an update every 2 weeks, and GPT Solar System Explorer every 2 weeks. Most recently, Orbits was updated on October 10, 2026 and GPT Solar System Explorer on October 8, 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.*