# Planetary Weather vs GPT Solar System Explorer

The clearest difference is review sentiment: Planetary Weather at 100% against GPT Solar System Explorer's 0%. Planetary Weather also leads on monetization model (free with in-app purchases vs subscription) and iOS requirement (6.0 vs 15.0). GPT Solar System Explorer's advantage is rating (4.7 vs 4.0) and update cadence (every 2 weeks vs every 7 months). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Planetary Weather sells 2 one-off in-app purchases 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 4.0. That said, the two scores are not equally well evidenced: GPT Solar System Explorer has 90 ratings behind it against 11, so its average is the more settled of the two. Written reviews complicate that: 100% of Planetary Weather'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.

Planetary Weather ships an update every 7 months, GPT Solar System Explorer every 2 weeks. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Planetary Weather | GPT Solar System Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (11 ratings)](https://appshunter.io/ios/app/planetary-weather/id862963045/reviews) | **[4.7 (90 ratings)](https://appshunter.io/ios/app/gpt-solar-system-explorer/id6743086286/reviews)** |
| Number of ratings | 11 | **90** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 118 MB | 288 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Technospirits](https://appshunter.io/developer/379836863) | [Apic Ways](https://appshunter.io/developer/1635604961) |

## What reviewers say

### Planetary Weather

[App page](https://appshunter.io/ios/app/planetary-weather/id862963045)

Explore real-time weather conditions on planets, moons, and the Sun in a stunning 3D solar system model. Get daily temperature and wind speed forecasts with accurate data.

**Highlights:** Daily temperature and wind speed forecasts, Data for planets, moons, and the Sun, Accurate estimates from NASA/NOAA, Stunning 3D solar system renders, Metric or Imperial units, High-quality graphics

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gas Giants | $0.99 | one-time |
| Moon Pack | $1.99 | 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 Planetary Weather free?

Planetary Weather 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, Planetary Weather or GPT Solar System Explorer?

GPT Solar System Explorer is rated higher. Planetary Weather averages 4.0 out of 5 from 11 ratings, while GPT Solar System Explorer averages 4.7 from 90 ratings.

### Do Planetary Weather or GPT Solar System Explorer have ads?

Neither Planetary Weather nor GPT Solar System Explorer shows ads.

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

Planetary Weather ships an update every 7 months, and GPT Solar System Explorer every 2 weeks. Most recently, Planetary Weather was updated on October 12, 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.*