Sun & Moon 3D Planetarium Pro vs Solstice
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sun & Moon 3D Planetarium Pro
Explore the celestial movements of the sun, moon, and planets. Simulate eclipses, track sunrise and sunset times, and receive notifications for astronomical events. View the sky from any location on Earth, even in augmented reality.
- 3D celestial body tracking
- Time and location simulation
- Augmented Reality (AR) view
- Sunrise/sunset prediction
- Lunar and solar eclipse simulation
- Astronomical event notifications
- Today widget
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Point your iPhone to the sky and explore the movement of the sun, moon, planets and stars across the sky while you change time by swiping the display. You can even change your location -- wondering how the sky looks where there's midnight sun? Or try setting your location to the other side of the equator and watch the sky rotating in the opposite direction. Even watch through your phones camera, by toggling the AR-button. When do solstices and equinoxes occur? Find out with this app! Even get a notification when they occur. Get a notification when the sun sets. Waiting for full moon? Get notified when it occurs. Predict lunar and solar eclipses and simulate the earth's shadow across the moon by simply swiping across the moon in the eclipses view! ••• You need this app -- get it now! ••• • Predict the positions of the sun, the moon, or the planets for any time for any position on Earth. • Sunrise, sunset for any given date - just swipe the sky view. Click on date or clock symbol to go back to current time. • In the Sun tab, scroll through the days and notice the the sunrise and sunset times changing. • Moonrise, moonset for any given date. • Solar System view. • Click on map symbol to choose a new location on a map. • Notifications • By swiping the sky view, you change the time and date • Swipe fast (fast forward/rewind in time) by using three fingers. • Swipe with two fingers to change orientastion • Tap on the info text to hide it for better view. • Pinch or tap to zoom Notifications • Notifications notify you of sunset, sunrise, new moon, full moon, solstice, equinox (the sun passes equator and day and night have nearly equal length), and these can be turned on or off. Sunset notification can be sent 30 minutes before sunset. • Choose in Settings which notifications you would like and which you would like to turn off. • No unsolicited notifications! Only notifications related to sunsets, solstices, equinox etc. Share Button • Share to friends and involve them in the fascinating world of Sun and Moon watching. Change View • You can change between Sky View and Space View, where each cellestial body's position in space is carefully and correctly calculated, however distance and sizes of sun and moon have been resized to make them visible. The moon phase text field shows the moon's illumination, and if the moon is in the Earth's shadow it changes to Lunar Eclipse (0-100 %), and if the moon covers the sun for your position, the text changes to Solar Eclipse (0-100 %.) See how sunrise and sunset times differ for various places and dates. It will work with no network coverage, and in flight mode, however showing your location as an address requires internet connection. With no internet, timezones are off, so if you simulate the sky from another location on Earth, the times are your local time. Showing map requires internet connection. Showing the satellite view on ground requires internet connection. Don't forget to leave a review, to help others find this fantastic app! And remember, never look directly at the real sun. Have fun using the app! Disclaimer. This app calculates the sun and moon positions very accurately with an error margin of up to 0.03°, which is good in most cases, however, always refer to table values for most accurate calculations of solar eclipse and the like, since they require more powerful calculations. The sun and the moon have an angular diameter of approximately 0.5°, and with an error margin of 0.03° each, eclipse times may be calculated with an error margin of ± 10 minutes.
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 Sun & Moon 3D Planetarium Pro's $2.99. Solstice also leads on review sentiment (85% vs 69%) and device support (5 vs 3). Sun & Moon 3D Planetarium Pro's advantage is in-app purchases (none vs 3) and update cadence (fortnightly vs every 2 months). On rating, ratings volume and 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; Sun & Moon 3D Planetarium Pro costs $2.99 up front. Solstice sells 3 one-off in-app purchases. Sun & Moon 3D Planetarium Pro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Sun & Moon 3D Planetarium Pro against 4.8 for Solstice. Both are backed by a comparable volume of ratings — 131 and 80 respectively. Written reviews are what separate them: 69% of Sun & Moon 3D Planetarium Pro's written reviews are positive against 85% of Solstice's.
Sun & Moon 3D Planetarium Pro ships an update fortnightly, Solstice every 2 months. Both last shipped on October 19, 2026.
| Parameter | Sun & Moon 3D Planetarium Pro | Solstice |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 4.7 (131 ratings) | 4.8 (80 ratings) — better |
| Positive reviews | 69.2% of reviews | 85.1% of reviews — better |
| Number of ratings | 131 — better | 80 |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #150 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch, Vision Pro — better |
| Requires iOS | 15.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 69 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Henning Poulsen | Dan Eden |
Customer experience
Sun & Moon 3D Planetarium Pro
Solstice
Bugs and requests
Sun & Moon 3D Planetarium Pro
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
Sun & Moon 3D Planetarium Pro
No in-app purchases
Solstice
- Small Tip$1.99
- Medium Tip$5.99
- Large Tip$11.99
Questions
Is Sun & Moon 3D Planetarium Pro free?
Is Solstice free?
Which has better reviews, Sun & Moon 3D Planetarium Pro or Solstice?
Do Sun & Moon 3D Planetarium Pro or Solstice have ads?
Which is updated more often, Sun & Moon 3D Planetarium Pro or Solstice?
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