# Intergalactic Solar System vs SkyORB ∞ Astronomy

The clearest difference is review sentiment: Intergalactic Solar System at 70% against SkyORB ∞ Astronomy's 0%. Intergalactic Solar System also leads on price (Free vs $2.99) and iOS requirement (13.0 vs 15.6). SkyORB ∞ Astronomy's advantage is in-app purchases (none vs 1) and device support (5 vs 3). On update cadence and ads there is nothing between them.

Intergalactic Solar System is free to download; SkyORB ∞ Astronomy costs $2.99 up front. Intergalactic Solar System sells 1 one-off in-app purchase. SkyORB ∞ Astronomy asks for nothing beyond the download.

Intergalactic Solar System ships an update monthly, SkyORB ∞ Astronomy every 2 months. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Intergalactic Solar System | SkyORB ∞ Astronomy |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.0 (25 ratings)](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | **70.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 355 MB | 303 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) | [Stephane Denis](https://appshunter.io/developer/295455703) |

## What reviewers say

### Intergalactic Solar System

[App page](https://appshunter.io/ios/app/intergalactic-solar-system/id1505399254)

Explore planets, moons, and countries in this space simulator mini-game. Learn astronomy and geography aligned with next-generation science standards. Discover the Milky Way galaxy and assess your knowledge through engaging gameplay.

**Highlights:** Planet and moon exploration, Country geography learning, Milky Way galaxy view, Common Core aligned curriculum, Proficiency assessment, Engaging gameplay levels

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Access to Full Game | $3.99 | one-time |


### SkyORB ∞ Astronomy

[App page](https://appshunter.io/ios/app/skyorb-astronomy/id1625985880)

Explore the universe with an interactive 3D star map, real-time celestial positions, and a 14-day schedule of astronomical events. Identify stars and planets using augmented reality and access detailed information about celestial bodies.

**Highlights:** Interactive 3D star map, Real-time celestial positions, Augmented Reality (AR) identification, 14-day astronomical event schedule, Detailed planet and celestial body information, Time shift feature for celestial events

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

**In-app purchases:** none


## Frequently asked questions

### Is Intergalactic Solar System free?

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

### Is SkyORB ∞ Astronomy free?

SkyORB ∞ Astronomy costs $2.99, with no in-app purchases.

### Do Intergalactic Solar System or SkyORB ∞ Astronomy have ads?

Neither Intergalactic Solar System nor SkyORB ∞ Astronomy shows ads.

### Which is updated more often, Intergalactic Solar System or SkyORB ∞ Astronomy?

Intergalactic Solar System ships an update monthly, and SkyORB ∞ Astronomy every 2 months. Most recently, Intergalactic Solar System was updated on October 9, 2026 and SkyORB ∞ Astronomy on September 29, 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.*