Blue Moon App vs Solstice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Moon App
Track upcoming blue moon and black moon celestial events. Get notifications for these rare lunar occurrences and easily add them to your personal calendar. Share these astronomical dates with friends and family through various social platforms.
- Countdown to blue and black moons
- Filter by moon type
- Add events to calendar
- Share event dates
- iPad multitasking support
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Countdown to the next blue moon and black moon events. Blue Moon: The second full moon event in the same month. Black Moon: The second full new event in the same month. Features: - show only blue, only black moon or both events - add events to your calendar - share event dates via e-mail, Twitter or Facebook - support for iPad Pro and iPad multitasking
Solstice
Track daily daylight changes in your location and see monthly projections. Explore daylight variations across different global locations and over time. Receive notifications and use widgets to stay informed about upcoming daylight.
- Daily daylight change comparison
- Monthly daylight projections
- Time Travel feature
- Multi-location comparison
- Daily notifications
- Widgets
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Solstice shows you how much more or less daylight there is in your location today compared to yesterday, as well as how much to expect each month as the year goes by. Use Time Travel to see how the daylight changes throughout the year, and compare it to multiple locations around the world. Enjoy daily notifications and widgets to look forward to brighter days.
Screenshots
Verdict
The clearest difference is price: Solstice at Free against Blue Moon App's $0.99. Solstice also leads on rating (4.8 vs 4.0) and update cadence (every 2 months vs every 17 months). Blue Moon App's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 85%). On ads 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
Solstice is free to download; Blue Moon App costs $0.99 up front. Solstice sells 3 one-off in-app purchases. Blue Moon App asks for nothing beyond the download.
Solstice holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Solstice has 82 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Blue Moon App's written reviews are positive against 85% of Solstice's, so the app with the better star average is not the one people write more warmly about.
Blue Moon App ships an update every 17 months, Solstice every 2 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Blue Moon App | Solstice |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (1 ratings) | 4.8 (82 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 85.1% of reviews |
| Number of ratings | 1 | 82 — better |
| Update frequency | Every 17 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch, Vision Pro — better |
| Requires iOS | 12.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 3 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Piet Jonas | Dan Eden |
Customer experience
Blue Moon App
Solstice
Bugs and requests
Blue Moon App
Not enough reviews yet to summarise bugs or requests.
Solstice
Reported bugs
7 issues- App crashes when sliding bar
- App crashes when holding any location
- Square widget displays white square with grey bars only
- Widget options not showing
- Lock screen widget progress ring shows incorrect progress
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- Morning sunlight notification doesn't work
- Longest and shortest days are inverted
Requested features
10 requests- Add a month view
- Add equinox measurements and widgets
- Remember multiple locations
- Compare data for two places on the same screen
- Add automatic push notifications for sunset
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- Countdown of sunlight left in a day
- Track increases to sunset time and earliest/latest times
- Compare locations for sunlight differences
- Manually add and save locations
- Ability to use worldwide (if not already)
In-app purchases
Blue Moon App
No in-app purchases
Solstice
- Small Tip$1.99
- Medium Tip$5.99
- Large Tip$11.99
Questions
Is Blue Moon App free?
Is Solstice free?
Which has better reviews, Blue Moon App or Solstice?
Do Blue Moon App or Solstice have ads?
Which is updated more often, Blue Moon App or Solstice?
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