MOON vs Simple Moon Phase Calendar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MOON
Track lunar cycles with this comprehensive moon phase calendar. Get notifications for key events, view moon phases for any date, and share lunar imagery with friends. Features offline access and home screen widgets.
- Current moon phase viewing
- Lunar event notifications
- Home screen widget
- Moon phase lookup for any date
- Social sharing of moon imagery
- Offline functionality
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MOON is your personal lunar portal. ++ Best User Experience - Webby Awards 2017 Honoree ++ Never be caught off-guard by moon-related craziness again. View the current moon phase or what the moon will look like on a certain date, see countdowns to moon events, receive notifications with enough time to avoid unpleasantness, and share what the moon looks like on any day with your friends. MOON is the most thoughtful moon phase calendar available. It becomes increasingly useful the more you use it. Enjoy. Features * Works offline, never be stranded without lunar positioning * Notifications before Full Moons, New Moons, and other special lunar events * Widget for your Home Screen * Share the current moon with the iMessage app * View what the moon looks like on any date * Share what the moon looks like on any date to Facebook, Twitter, iMessage etc. * Save current moon image to camera roll * Lunar illumination percentage * Countdown to upcoming New and Full Moons * Beautiful animated, layered spacescape * Hemisphere setting * Universal app * Support for iPhone, iPad, and Apple Watch * Built for iOS 12+ * Shake for Star Harp Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://moonapp.me/privacy.html
Simple Moon Phase Calendar
A straightforward calendar app displaying detailed lunar information for each date. It includes moon phase, age, distance, illumination, zodiac sign, and rise/set times. Features a note function, widgets, and customizable notifications for key lunar events and Mercury retrograde.
- Moon phase and age display
- Lunar distance and illumination
- Moon sign and constellation
- Mercury retrograde tracking
- Moonrise and moonset times
- Note function
- Widget support
- Customizable notifications
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It is a simple moon phase calendar. Tap the date cell to display the detail screen. The data to display is the moon phase, moon age, distance, percent illuminated, moon sign , constellation, Mercury retrograde, moonrise and monnset etc. There is also a note function and Widget. You can notify on full moon, new moon, first quarter, last quarter, beginning and the end of Mercury retrograde.
Screenshots
Verdict
The clearest difference is ads: MOON at none against Simple Moon Phase Calendar's shown. MOON also leads on update cadence (weekly vs every 5 months) and ratings volume (30K vs 86). On price, rating, 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
Both are free to download. MOON sells 10 in-app purchases, starting at $11.99 per year and Simple Moon Phase Calendar sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for MOON against 4.8 for Simple Moon Phase Calendar. That said, the two scores are not equally well evidenced: MOON has 30K ratings behind it against 86, so its average is the more settled of the two. Written reviews are what separate them: 85% of MOON's written reviews are positive against 65% of Simple Moon Phase Calendar's.
MOON ships an update weekly, Simple Moon Phase Calendar every 5 months. Both last shipped on November 6, 2026.
| Parameter | MOON | Simple Moon Phase Calendar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (30K ratings) — better | 4.8 (86 ratings) |
| Positive reviews | 85.4% of reviews — better | 65.1% of reviews |
| Number of ratings | 30K — better | 86 |
| Update frequency | Weekly — better | Every 5 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #61 — better | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 143 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | MOON CALENDAR | Fumihiro Takahashi |
Customer experience
MOON
Simple Moon Phase Calendar
Bugs and requests
MOON
Reported bugs
2 issues- Widget not working for some users
- Moon phase information inaccurate on certain dates
Requested features
4 requests- Add moon rise and set times
- Include information on lunar events like eclipses
- Allow customization of notification sounds
- Provide Southern Hemisphere moon phase view
Simple Moon Phase Calendar
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MOON
- MOON Pro Yearly (NT)$11.991 Year
- MOON Pro Yearly3 Days trial$11.991 Year
- MOON Pro Yearly3 Days trial$19.991 Year
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- MOON Pro Yearly$19.991 Year
- MOON Limited Time Offer$19.991 Year
- MOON Pro Yearly 50% Off3 Days trial$19.991 Year
- MOON Pro (Yearly)3 Days trial$24.991 Year
- MOON Pro (Yearly NT)$24.991 Year
- MOON Ambassador$4.99
- MOON Supporter$9.99
Simple Moon Phase Calendar
- Remove Ads$1.99
- Unlock$1.99
Questions
Is MOON free?
Is Simple Moon Phase Calendar free?
Which has better reviews, MOON or Simple Moon Phase Calendar?
Do MOON or Simple Moon Phase Calendar have ads?
Which is updated more often, MOON or Simple Moon Phase Calendar?
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