# Moon. vs Moon Book

The clearest difference is review sentiment: Moon Book at 90% against Moon.'s 34%. Moon.'s advantage is update cadence (every 2 months vs every 6 months) and iOS requirement (7.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Moon. ships an update every 2 months, Moon Book every 6 months. The most recent releases landed on November 10, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Moon. | Moon Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (288 ratings)](https://appshunter.io/ios/app/moon/id409619991/reviews)** | — |
| Number of ratings | **288** | — |
| Positive reviews | 33.9% of reviews | **90.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 12 MB | 22 MB |
| Requires iOS | **7.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CDV Concepts](https://appshunter.io/developer/388067551) | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) |

## What reviewers say

### Moon.

[App page](https://appshunter.io/ios/app/moon/id409619991)

Explore detailed information about the moon with a 3D model, lunar phases, and rise/set times. Research moon data for any past or future date and receive notifications for full and new moons.

**Highlights:** 3D Moon model, Lunar Phase tracking, Moonrise/Moonset times, Lunar Illumination, Research moon data for any date, Full and new moon notifications

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

**In-app purchases:** none


### Moon Book

[App page](https://appshunter.io/ios/app/moon-book/id906552724)

This app visualizes lunar eclipses, showing viewing times and directions from your location. Plan your observations by setting specific locations and previewing eclipse phases.

**Highlights:** Lunar eclipse viewing times, Direction of eclipse visibility, Location-specific eclipse phases, Pre-set observing locations, Overseas eclipse start times, Thumbnail images of eclipse phases

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Moon. free?

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

### Is Moon Book free?

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

### Do Moon. or Moon Book have ads?

Neither Moon. nor Moon Book shows ads.

### Which is updated more often, Moon. or Moon Book?

Moon. ships an update every 2 months, and Moon Book every 6 months. Most recently, Moon. was updated on November 10, 2026 and Moon Book on November 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.*