# GlobeViewer Moon vs Stars Units Sizes Objects

The clearest difference is review sentiment: Stars Units Sizes Objects at 80% against GlobeViewer Moon's 33%. Stars Units Sizes Objects also leads on rating (4.2 vs 2.0) and in-app purchases (none vs 6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. GlobeViewer Moon sells 6 one-off in-app purchases. Stars Units Sizes Objects asks for nothing beyond the download.

Stars Units Sizes Objects holds the better App Store score, 4.2 against 2.0. Both are backed by a comparable volume of ratings — 3 and 5 respectively. Written reviews point the same way: 33% of GlobeViewer Moon's written reviews are positive against 80% of Stars Units Sizes Objects's.

GlobeViewer Moon ships an update every 3 months, Stars Units Sizes Objects every 4 months. The most recent releases landed on October 8, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | GlobeViewer Moon | Stars Units Sizes Objects |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/globeviewer-moon/id1521271990/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571/reviews)** |
| Number of ratings | 3 | **5** |
| Positive reviews | 33.3% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 160 MB | 124 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RAB-Software](https://appshunter.io/developer/543575684) | [Mudarmeen Munlin](https://appshunter.io/developer/1348165664) |

## What reviewers say

### GlobeViewer Moon

[App page](https://appshunter.io/ios/app/globeviewer-moon/id1521271990)

Explore a detailed 3D model of the moon's surface with interactive globe and high-resolution map views. Discover craters, grooves, and other features with four distinct map modes, utilizing data from NASA's Lunar Reconnaissance Orbiter. This app offers adjustable lighting for enhanced visibility and is designed to be a valuable tool for telescope users.

**Highlights:** Interactive 3D moon globe, High-resolution 3D map view, Four map modes (elevation, photo, combined, telescope), Adjustable lighting for feature visibility, Data from NASA's Lunar Reconnaissance Orbiter, Telescope mode with realistic lighting and moon phase simulation

**Features:** Family Sharing, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $4.99 | one-time |
| Upgrade to Front | $9.99 | one-time |
| Moon front side only | $13.99 | one-time |
| Upgrade to Pro | $14.99 | one-time |
| Upgrade to Pro | $23.99 | one-time |
| Professional version | $26.99 | one-time |


### Stars Units Sizes Objects

[App page](https://appshunter.io/ios/app/stars-units-sizes-objects/id1576148571)

Explore the vastness of the universe, from the smallest particles to the largest cosmic structures. Compare object sizes, view detailed images, and perform unit conversions across a wide range of astronomical scales. Learn about stars, galaxies, and the incredible distances between them.

**Highlights:** Compare object sizes, View object images, Pinch/Zoom and Pan images, Unit conversion for distances, Explore scales from Planck length to observable universe, Learn about stars and galaxies

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GlobeViewer Moon free?

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

### Is Stars Units Sizes Objects free?

Stars Units Sizes Objects is free to download, with no in-app purchases.

### Which has better reviews, GlobeViewer Moon or Stars Units Sizes Objects?

Stars Units Sizes Objects is rated higher. GlobeViewer Moon averages 2.0 out of 5 from 3 ratings, while Stars Units Sizes Objects averages 4.2 from 5 ratings.

### Do GlobeViewer Moon or Stars Units Sizes Objects have ads?

Both GlobeViewer Moon and Stars Units Sizes Objects show ads.

### Which is updated more often, GlobeViewer Moon or Stars Units Sizes Objects?

GlobeViewer Moon ships an update every 3 months, and Stars Units Sizes Objects every 4 months. Most recently, GlobeViewer Moon was updated on October 8, 2026 and Stars Units Sizes Objects on September 22, 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.*