# Air Moon vs DIY Solar System

The clearest difference is in-app purchases: DIY Solar System at none against Air Moon's 1. DIY Solar System also leads on ratings volume (17 vs 5). Air Moon's advantage is rating (4.8 vs 4.5). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Air Moon sells 1 one-off in-app purchase. DIY Solar System asks for nothing beyond the download.

Air Moon holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 5 and 17 respectively.

Air Moon ships an update every 6 weeks, DIY Solar System every 2 months. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Air Moon | DIY Solar System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/air-moon/id1491631384/reviews)** | [4.5 (17 ratings)](https://appshunter.io/ios/app/diy-solar-system/id1644242890/reviews) |
| Number of ratings | 5 | **17** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 6 MB | 180 MB |
| Requires iOS | 13.2 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [MITSURU OMURA](https://appshunter.io/developer/1476823856) | [The Lawrence Hall of Science](https://appshunter.io/developer/462994550) |

## What reviewers say

### Air Moon

[App page](https://appshunter.io/ios/app/air-moon/id1491631384)

Explore lunar phases and Earth's phases in augmented reality. Walk around celestial bodies to intuitively understand their cycles. Adjust Earth's rotation, position, and view from different hemispheres.

**Highlights:** Augmented reality moon and Earth phase visualization, Adjustable Earth rotation speed, Switch between real and simplified ratios, View from Northern and Southern Hemispheres, Set Earth's position for solstices and equinoxes, Set moon phases (full, quarter, new), Adjust viewpoint latitude and longitude

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Heart Icon | $0.99 | one-time |


### DIY Solar System

[App page](https://appshunter.io/ios/app/diy-solar-system/id1644242890)

Explore the solar system with interactive activities and an augmented reality planet walk. Learn about space travel, design a moon base, and identify celestial objects. Developed by leading science institutions, this app makes learning about space engaging for families and educators.

**Highlights:** Interactive space activities, Augmented reality planet walk, Design a moon base, Grow a space garden, Control a Mars rover, In or Out space game, NASA imagery

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Air Moon free?

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

### Is DIY Solar System free?

DIY Solar System is free to download, with no in-app purchases.

### Which has better reviews, Air Moon or DIY Solar System?

Air Moon is rated higher. Air Moon averages 4.8 out of 5 from 5 ratings, while DIY Solar System averages 4.5 from 17 ratings.

### Do Air Moon or DIY Solar System have ads?

Neither Air Moon nor DIY Solar System shows ads.

### Which is updated more often, Air Moon or DIY Solar System?

Air Moon ships an update every 6 weeks, and DIY Solar System every 2 months. Most recently, Air Moon was updated on October 8, 2026 and DIY Solar System 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.*