# Stellar Galaxia vs X

The clearest difference is in-app purchases: Stellar Galaxia at none against X's 10. Stellar Galaxia also leads on iOS requirement (11.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. X sells 10 one-off in-app purchases. Stellar Galaxia asks for nothing beyond the download.

Stellar Galaxia ships an update every 5 months, X every 3 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stellar Galaxia | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (3 ratings)](https://appshunter.io/ios/app/x-trails-pro/id1622662470/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | — | Free |
| Size | 292 MB | 46 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SmartBee Sp. z o.o.](https://appshunter.io/developer/1464976759) | [Roni Waserman](https://appshunter.io/developer/1384422367) |

## What reviewers say

### Stellar Galaxia

[App page](https://appshunter.io/ios/app/stellar-galaxia/id1502811429)

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

**In-app purchases:** none


### X

[App page](https://appshunter.io/ios/app/x-trails-pro/id1622662470)

Explore the solar system, Earth's atmosphere, and its structure with engaging audio and video content. This app offers an entertaining and educational journey for all ages, created by a team of experts.

**Highlights:** Audio guides for Solar System Trail, On-demand content, Audio and video on Earth's atmosphere, Content on Earth's structure, Solar System exploration, Expert-created content

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Comet's Journey | $0.99 | one-time |
| Journey To The Centre Of Earth | $0.99 | one-time |
| A Mission To Mars | $0.99 | one-time |
| A Mission To The ISS | $0.99 | one-time |
| A Voyage To Saturn | $0.99 | one-time |
| Solar System Experience | $0.99 | one-time |
| The World Under Our Feet | $0.99 | one-time |
| Tour The Atmosphere | $0.99 | one-time |
| When Dinosaurs Moved | $0.99 | one-time |
| Moons Of The Solar System | $0.99 | one-time |


## Frequently asked questions

### Is Stellar Galaxia free?

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

### Is X free?

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

### Do Stellar Galaxia or X have ads?

Neither Stellar Galaxia nor X shows ads.

### Which is updated more often, Stellar Galaxia or X?

Stellar Galaxia ships an update every 5 months, and X every 3 months. Most recently, Stellar Galaxia was updated on October 29, 2026 and X on October 24, 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.*