Comparison

Moon. vs Moon Book

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Moon.

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
Read full description

Moon is a perfect resource to help you learn about the moon. Moon constantly updates a panel of information that tells you everything you want to know about the moon. *3D Moon model *Lunar Phase *Moonrise/Moonset *Lunar Illumination *Lunar Azimuth (where it is in the sky) *Lunar Altitude (angle above the horizon) *Distance to the moon (in miles, kilometers, feet, meters, Eiffel Towers, and Earths) *Phase Timeline (iPad Only) Moon also allows you to research information about the moon at ANY date in past or in the future. You could look up what the lunar phase will be on, say, your birthday...in 10 years. With Moon you can also schedule notifications for full or new moons so you will always be ready to handle the mysterious things that happen during full moons. Features: *Constantly updated moon information for your current location *Ability to research moon information for ANY date EVER based on your current location or any location you choose *Full and new moon notifications *Add Full/New moon dates to your calendar *Custom Location settings *No internet connection required ***Check out Moon+ for added features such as a phase timeline on iPhone, drag to change date, and an adfree experience*** Please email cdvconcepts@gmail.com with any comments, suggestions, or questions.

About

Moon Book

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
Read full description

The Moon Book App clearly shows you when and from which direction eclipse of the moon can be viewed. The time of beginning or ending penumbral eclipse is simultaneous around the country but a place of beginning total eclipse differs from pace to place. The Moon Book will show you the phases of the moon eclipse at your place. You will be able to set up any observing place beforehand if the moon eclipse star chart is selected. When you move to a distant place for observing the moon eclipse, you will be able to know in advance a place where the Earthfs shadow starts hiding the moon. You will be able to check a start time of the moon eclipse overseas also. Tapping on the moon icon at the upper left corner of the star chart will show you thumbnail images of the phases of the moon eclipse at regular intervals. The interval of the thumbnail images can be changed.

Screenshots

Moon.1 screens
Moon Book4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Moon. versus Moon Book: the parameters behind the verdict, then further details
ParameterMoon.Moon Book
PriceFreeFree
Rating2.6 (288 ratings) — better—
Positive reviews33.9% of reviews90.0% of reviews — better
Number of ratings288 — better—
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better12.0
Further details — not scored
Size12 MB22 MB
Age rating4+4+
DeveloperCDV ConceptsVixen Co.,Ltd.

Customer experience

Moon.

All ratings289 ratings
Positive36.0%
Neutral9.0%
Negative55.0%
Written reviews245 reviews
Positive33.9%
Neutral12.2%
Negative53.9%

Moon Book

Written reviews10 reviews
Positive90.0%
Neutral10.0%
Negative0.0%

In-app purchases

None

Moon.

No in-app purchases

None

Moon Book

No in-app purchases

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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