Moon Phase Calendar is a weather-category utility for amateur astronomers and photographers that tracks lunar and solar data on iOS and Android.
Product velocity
Maintenance
Daily rank 🇺🇸
#87
▼14Weather · free
Sentiment
4.8
63k reviews
Nemesis
Fragmented field
The App DNA
What makes this app unique?
Users hire the app for offline-accessible astronomical planning, allowing them to coordinate photography or events with specific lunar phases without needing a data connection.
For Amateur astronomers, outdoor photographers, and individuals interested in lunar cycles for event planning.
What does it look like?
Key features
Displays over 15 lunar and 10 solar parameters for any location, boosting session frequency for hobbyists and expanding ad-impression inventory.
Calculates data locally without internet, reducing server-side infrastructure costs while maintaining utility for outdoor users.
Uses device sensors to show Sun and Moon paths, providing high-utility planning for photographers and driving repeat engagement.
How much does it cost?
The app operates on an ad-supported model with no IAP or subscription gates, relying on high-volume user traffic for monetization.
Velocity
Maintenance developmentUX improvementsinternationalizationperformanceShow more...
The app has released only one update in the last 221 days, placing it firmly in the maintenance tier. Development is currently stagnant with no evidence of active feature iteration or live operations. The latest release focused on minor utility improvements, such as UI adjustments and localization, rather than significant new content. Given the lack of updates over the past seven months, the development momentum is currently low.
Who built it?
probadoSoft
3 apps tracked · Weather
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Pocket WeatherUser Sentiment
What do users think recently?
Recent user voice shows a thrilled sentiment. Users appreciate detailed lunar phase information and real-time visual data provide high utility for astrology enthusiasts and simple and reliable interface design keeps the app accessible for daily use over many years, but report excessive push notification frequency for minor lunar changes creates a disruptive user experience.
How are ratings & reviews evolving?
Weekly average review rating
What users say, by theme
- Detailed lunar phase information and real-time visual data provide high utility for astrology enthusiasts
- Simple and reliable interface design keeps the app accessible for daily use over many years
- Customizable widget and notification settings allow users to track specific lunar events effectively
- Excessive push notification frequency for minor lunar changes creates a disruptive user experience
50 of 50 recent reviews analyzed · high confidence · Thrilled overall
Read the full review analysisUnlock 1 more frustration theme and 1 user request, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for Moon Phase Calendar
How's the Weather market?
The app holds the #78 Free position in the US Weather category. Its ability to maintain a top-100 slot across multiple international markets signals strong organic discovery despite a 7-month update cadence.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for Moon Phase Calendar
Where is it heading?
The casual weather-utility market is consolidating around apps that balance high-utility data with non-intrusive engagement loops. Moon Phase Calendar remains advantaged by its offline-first design, but the current notification friction threatens to erode the long-term retention that sustains its chart position.
- Excessive notification frequency in the latest release creates a churn risk that outweighs the utility of new features like the alarm clock.
- The offline-first architecture continues to drive organic installs in the Weather category, maintaining a top-100 chart position across multiple regions.
The SWOT
- Offline-first architecture eliminates server-side dependency for core astronomical calculations
- Compass-based sensor integration provides a specialized utility for photographers that generic weather apps lack
- Developing a compass-specific home screen widget could improve accessibility for the photography segment
Next best moves
Tighten notification settings to allow user-defined thresholds because high-frequency alerts are the #1 complaint theme → reduce churn
The counter-intuitive read
The app's 7-month update cadence is not a…
Read the full takeSince the last report: The core product remains unchanged, but the analytical interpretation of the app's maintenance-mode status has shifted from a negative risk to a sign of utility completion.
Bottom line
Moon Phase Calendar wins on offline utility and specialized astronomical data, but the lack of monetization gates and notification friction limits its long-term value, so the team should prioritize notification-logic controls to stabilize the user base.
Unlock 2 critical frictions, 1 market threat and the analyst’s take.
Access the full report for freeSources
- [1] Play Store listing, source
Report last updated