# Moon Book vs Daff Moon

The clearest difference is in-app purchases: Moon Book at none against Daff Moon's 2. Moon Book also leads on ads (none vs shown) and device support (3 vs 1). Daff Moon's advantage is update cadence (every 2 weeks vs every 6 months) and review sentiment (100% vs 90%). On price there is nothing between them.

Both are free to download. Daff Moon sells 2 one-off in-app purchases. Moon Book asks for nothing beyond the download.

Moon Book ships an update every 6 months, Daff Moon every 2 weeks. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Moon Book | Daff Moon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (19 ratings)](https://appshunter.io/ios/app/daff-moon/id6753651422/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 10 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vixen Co.,Ltd.](https://appshunter.io/developer/536188843) | [Evgenii Fedorishchenko](https://appshunter.io/developer/1844198815) |

## What reviewers say

### 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


### Daff Moon

[App page](https://appshunter.io/ios/app/daff-moon/id6753651422)

Track celestial movements with detailed information on moon phases, sunrise/sunset times, and the sun and moon's positions. Explore an interactive sky sphere for real-time celestial views and learn about twilight and golden hour.

**Highlights:** Current Moon Phase tracking, Moon Phases Calendar, Sunrise & Sunset Times, Moonrise & Moonset times, Day & Night Duration, Interactive Sky Sphere

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| App contribution | $4.99 | one-time |


## Frequently asked questions

### Is Moon Book free?

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

### Is Daff Moon free?

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

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

Daff Moon shows ads; Moon Book does not.

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

Moon Book ships an update every 6 months, and Daff Moon every 2 weeks. Most recently, Moon Book was updated on October 9, 2026 and Daff Moon 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.*