# Intergalactic Solar System vs Sun Light Hours

The clearest difference is ads: Intergalactic Solar System at none against Sun Light Hours's shown. Intergalactic Solar System also leads on iOS requirement (13.0 vs 16.6). Sun Light Hours's advantage is update cadence (every 3 days vs monthly). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Intergalactic Solar System sells 1 one-off in-app purchase and Sun Light Hours sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Intergalactic Solar System ships an update monthly, Sun Light Hours every 3 days. The most recent releases landed on September 22, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Intergalactic Solar System | Sun Light Hours |
| --- | --- | --- |
| Price | Free | Free |
| 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 | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 355 MB | 43 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) | [NovaNext](https://appshunter.io/developer/1285557502) |

## 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 |


### Sun Light Hours

[App page](https://appshunter.io/ios/app/sun-light-hours/id6499107039)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Donate $3 | $2.99 | one-time |
| Donate $5 | $4.99 | one-time |
| Donate $10 | $9.99 | one-time |
| Donate $15 | $14.99 | one-time |
| Donate $20 | $19.99 | one-time |


## Frequently asked questions

### Is Intergalactic Solar System free?

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

### Is Sun Light Hours free?

Sun Light Hours is free to download, with in-app purchases available.

### Do Intergalactic Solar System or Sun Light Hours have ads?

Sun Light Hours shows ads; Intergalactic Solar System does not.

### Which is updated more often, Intergalactic Solar System or Sun Light Hours?

Intergalactic Solar System ships an update monthly, and Sun Light Hours every 3 days. Most recently, Intergalactic Solar System was updated on September 22, 2026 and Sun Light Hours on October 1, 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.*