# Solar Book vs GlobeViewer Moon

The clearest difference is rating: Solar Book at 4.8 against GlobeViewer Moon's 2.0. Solar Book also leads on in-app purchases (none vs 6) and ads (none vs shown). GlobeViewer Moon's advantage is update cadence (every 3 months vs every 14 months). On price, ratings volume, device support and iOS requirement there is nothing between them.

Both are free to download. GlobeViewer Moon sells 6 one-off in-app purchases. Solar Book asks for nothing beyond the download.

Solar Book holds the better App Store score, 4.8 against 2.0. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Solar Book ships an update every 14 months, GlobeViewer Moon every 3 months. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Solar Book | GlobeViewer Moon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/solar-book/id1078873201/reviews)** | [2.0 (3 ratings)](https://appshunter.io/ios/app/globeviewer-moon/id1521271990/reviews) |
| Number of ratings | **4** | 3 |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 14 months | **Every 3 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 5 MB | 160 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [RAB-Software](https://appshunter.io/developer/543575684) |

## What reviewers say

### Solar Book

[App page](https://appshunter.io/ios/app/solar-book/id1078873201)

This app provides detailed information about solar eclipses, including timings for different phases based on your location. It allows you to view sequential images and star charts for planning and observation.

**Highlights:** Solar eclipse phase timing, Location-based eclipse calculations, Sequential eclipse image display, Star chart visualization, Past and future eclipse planning

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Solar Book free?

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

### Is GlobeViewer Moon free?

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

### Which has better reviews, Solar Book or GlobeViewer Moon?

Solar Book is rated higher. Solar Book averages 4.8 out of 5 from 4 ratings, while GlobeViewer Moon averages 2.0 from 3 ratings.

### Do Solar Book or GlobeViewer Moon have ads?

GlobeViewer Moon shows ads; Solar Book does not.

### Which is updated more often, Solar Book or GlobeViewer Moon?

Solar Book ships an update every 14 months, and GlobeViewer Moon every 3 months. Most recently, Solar Book was updated on October 24, 2026 and GlobeViewer Moon on October 20, 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.*