# Solar System Viewer vs Mag Galaxy

The clearest difference is price: Mag Galaxy at Free against Solar System Viewer's $2.99. Mag Galaxy also leads on in-app purchases (none vs 4) and iOS requirement (13.1 vs 26.0). Solar System Viewer's advantage is update cadence (every 2 months vs every 8 months). On ads and device support there is nothing between them.

Mag Galaxy is free to download; Solar System Viewer costs $2.99 up front. Solar System Viewer sells 4 one-off in-app purchases. Mag Galaxy asks for nothing beyond the download.

Solar System Viewer ships an update every 2 months, Mag Galaxy every 8 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Solar System Viewer | Mag Galaxy |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.4 (28 ratings)](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Monetization | Paid | — |
| Size | 22 MB | 3 MB |
| Requires iOS | 26.0 | **13.1** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [BLUE COMET LABS LLC](https://appshunter.io/developer/1492055170) | [Claude Duplessis](https://appshunter.io/developer/1591450006) |

## What reviewers say

### Solar System Viewer

[App page](https://appshunter.io/ios/app/solar-system-viewer-8planets/id1554639445)

Explore and simulate the orbits of planets in our solar system. This app allows you to speed up or slow down time, travel to any date, and view planetary positions. It also offers widgets for your home screen and Apple Watch complications.

**Highlights:** Simulate planetary orbits, Adjust time speed, Time travel to specific dates, Home screen widgets, Apple Watch integration, View planet overviews

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Io Tip | $1.99 | one-time |
| Europa Tip | $3.99 | one-time |
| Ganymede Tip | $5.99 | one-time |
| Callisto Tip | $9.99 | one-time |


### Mag Galaxy

[App page](https://appshunter.io/ios/app/mag-galaxy/id1618628375)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar System Viewer free?

Solar System Viewer costs $2.99, and also offers in-app purchases.

### Is Mag Galaxy free?

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

### Do Solar System Viewer or Mag Galaxy have ads?

Neither Solar System Viewer nor Mag Galaxy shows ads.

### Which is updated more often, Solar System Viewer or Mag Galaxy?

Solar System Viewer ships an update every 2 months, and Mag Galaxy every 8 months. Most recently, Solar System Viewer was updated on October 29, 2026 and Mag Galaxy on October 27, 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.*