Comparison

Moon phases assist vs The Moon

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

Head to head
About

Moon phases assist

Visually learn about moon phases and celestial body positions. Interactive diagrams help answer questions about why the moon changes appearance and how the sun's height varies with seasons. Understand the solar system through intuitive overhead and celestial sphere views.

Highlights
  • Visual moon phase learning
  • Celestial body position diagrams
  • Interactive dial for position checking
  • Answers to astronomy questions
  • Overhead and celestial sphere views
  • Improved features through overhaul
Features
Read full description

This app allows you to visually learn about the different phases of the moon depending on the positions of the moon, the Earth, and the Sun. The app has undergone a major overhaul to improve its features! Why does the moon have different phases? Why does the height of the Sun change depending on the season? These diagrams provide easy answers to these questions! You can intuitively grasp the positions of the Sun, the Earth, and the moon through overhead and celestial sphere diagrams! What are the positions of the Sun and the moon during a full moon? Where is the Sun when the waning crescent transits the meridian? You can answer these questions by turning the dial and checking their positions! ※The size and distance of celestial objects are not drawn to scale but exaggerated for easier understanding. ※For easier understanding, the Earth's orbit is made circular instead of elliptic while the inclination of the moon's orbit has been omitted.

About

The Moon

Explore the moon with stunning realism and accuracy. This app provides real-time rendering of lunar phases, liberations, and orbital positions. Access a yearly calendar of moon phases and view the moon's location on an Earth map.

Highlights
  • Real-time moon rendering
  • Accurate lunar phase visualization
  • Intuitive time controller
  • Yearly moon phase calendar
  • Earth map with moon position
  • User-friendly interface
Features
Read full description

Experience the moon with detailed accuracy using The Moon - Simulation App. Designed for moon enthusiasts, astronomers, and anyone interested in our celestial neighbor, this app offers precise information and a user-friendly interface, allowing you to observe the moon in real-time. Key Features: - Real-Time Moon Rendering: Witness the moon's phases, liberations, and apogee/perigee with astonishing realism and accuracy. Use the intuitive time controller to seamlessly move forwards or backwards, witnessing the Moon's phases unfold continuously. Or, simply pick a specific date and time to jump to using the time picker. - High Realism and User-Friendly Interface: The Moon app is designed to provide the highest level of realism, ensuring accurate depictions of the moon's behavior while maintaining an intuitive and easy-to-navigate interface. - Yearly Moon Phase Calendar: Select any year to view a detailed list of significant moon phases (full, new, half), along with the precise date and time of each phase. Click on any event to jump to that specific time instance. Also, explore moon's maximum declination and apogee/perigee (maximum distances) effortlessly. - Earth Map with Moon Position: View the moon's current overhead position on the map. You can also select your location to see the parallactic angle of the moon phase, offering a unique perspective based on your geographic location.

Screenshots

Moon phases assist4 screens
The Moon4 screens

Verdict

The call

The clearest difference is rating: The Moon at 4.9 against Moon phases assist's 3.5. The Moon also leads on ads (none vs shown) and review sentiment (100% vs 67%). Moon phases assist's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 6 months). On price, device support and iOS requirement 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. The Moon sells 1 one-off in-app purchase. Moon phases assist asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

The Moon holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: The Moon has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 67% of Moon phases assist's written reviews are positive against 100% of The Moon's.

UpkeepUpdate frequency

Moon phases assist ships an update every 3 weeks, The Moon every 6 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard7 real differences · 3 level
Moon phases assist versus The Moon: the parameters behind the verdict, then further details
ParameterMoon phases assistThe Moon
PriceFreeFree
Rating3.5 (2 ratings)4.9 (14 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings214 — better
Update frequencyEvery 3 weeks — betterEvery 6 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size64 MB81 MB
Age rating4+4+
DeveloperPlus Inc. (Japan)Othman Alzahrani

Customer experience

Moon phases assist

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews9 reviews
Positive66.7%
Neutral22.2%
Negative11.1%

The Moon

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Moon phases assist

No in-app purchases

1 purchases

The Moon

One-time1
  • Support The Moon App$0.99

Questions

Is Moon phases assist free?
Moon phases assist is free to download, with no in-app purchases.
Is The Moon free?
The Moon is free to download, with in-app purchases available.
Which has better reviews, Moon phases assist or The Moon?
The Moon is rated higher. Moon phases assist averages 3.5 out of 5 from 2 ratings, while The Moon averages 4.9 from 14 ratings.
Do Moon phases assist or The Moon have ads?
Moon phases assist shows ads; The Moon does not.
Which is updated more often, Moon phases assist or The Moon?
Moon phases assist ships an update every 3 weeks, and The Moon every 6 months. Most recently, Moon phases assist was updated on November 2, 2026 and The Moon on November 4, 2026.

Other comparisons