SkyORB Classic Astronomy vs Celestia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SkyORB Classic Astronomy
Explore the cosmos with a 3D planetarium and real-time celestial event tracking. Identify stars and planets using your device's sensors and AR, and receive notifications for upcoming astronomical phenomena. Access detailed information and simulations from any location.
- 3D star map and planetarium
- Real-time planet orbits
- AR night sky identification
- Celestial event notifications
- Universal search for celestial objects
- Moon phase tracking
- Worldwide sky simulations
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Unleash the power of the universe with SkyORB, your all-in-one astronomy companion. Explore the stars, planets, and celestial events like never before. Discover the wonders of the cosmos and stay informed about astronomical phenomena. Why Choose SkyORB? Astronomy at Your Fingertips: SkyORB is a lightweight and fast astronomy app designed to put the universe in the palm of your hand. With a 3D star map, a feature-packed planetarium, ephemeris with notifications, and much more, it's your gateway to the cosmos. Real-Time 3D Universe: Immerse yourself in a breathtaking 3D representation of our solar system. Watch as planets orbit the sun in real-time. Zoom in for a closer look at the planets or zoom out to explore the entire Milky Way. Explore the Night Sky: SkyORB brings the night sky to life. Use your device to point at a star or planet, and our app will identify it for you. Whether you rely on GPS positioning, compass orientation, gyroscope data, or ARKit, we've got you covered. Stay Informed: Keep track of comets and satellites with updates from the web. Stay on top of celestial events with personalized ephemeris that covers the next 60 days. Whether it's the peak of a meteor shower or a planetary elongation, we'll make sure you're in the know. Universal Search: Looking for a specific celestial object? Our universal search engine lets you find everything from constellations and planets to space probes and more with just a few keystrokes. Moon Phases: SkyORB provides moon phase information, including rise and set times. Explore the moon's changing faces and understand its impact on the night sky. Worldwide Simulations: Simulate the night sky from any location on Earth or even from other planets like Mars. SkyORB Classic lets you explore the universe from wherever you are. Notifications: Receive local notifications for significant astronomical events like planet visibility, full and new moons, and eclipses. Plus, get the latest astronomy news delivered right to your device. Upgrade to SkyORB Premium and Unlock Even More: Ad-Free Experience: Say goodbye to ads and enjoy uninterrupted stargazing. Enhanced Planetarium: Go full-screen in planetarium mode, unlocking more views. Extended Information: Get more details on moon phases and ephemeris. Comprehensive Search: Unlock the full potential of our search engine. Multi-Device Access: Access your premium features on all your devices connected to your account with iOS cloud storage. And Much More: Enjoy a host of additional premium features. Apple Watch Support: Now you can explore the cosmos right from your wrist with vocal search, digital crown functionality, an equation of time complication, and standalone use. Upgrade and Renewal: The 12-month Premium Membership automatically renews, ensuring uninterrupted access to premium features. Manage your subscription in your iTunes account settings. Step into the world of astronomy with SkyORB. Download it today and embark on your cosmic journey. The universe is waiting
Celestia
Explore the universe in real-time 3D. Visit planets, moons, star clusters, and galaxies, viewing them from any point in space and time. Customize your experience with expandable content and detailed simulations.
- Real-time 3D space visualization
- Explore planets, moons, stars, galaxies
- Accurate solar system object positions
- Interactive planetarium mode
- Expandable content with add-ons
- Customizable celestial databases
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Celestia — real-time 3D visualization of space 3D Space Simulator | Celestia lets you explore our universe in three dimensions. Celestia simulates many different types of celestial objects. From planets and moons to star clusters and galaxies, you can visit every object in the expandable database and view it from any point in space and time. The position and movement of solar system objects is calculated accurately in real time at any rate desired. Interactive Planetarium | Celestia serves as a planetarium – for an observer on any celestial object. You can easily navigate to any world and land on its surface. When used as a planetarium, Celestia shows accurate positions of solar system objects in the sky. You can switch labels and other supporting features on and off with hotkeys, or zoom in and out on an object of interest, for example Jupiter’s system of moons. Expandable Content | Customize Celestia according to your needs. Celestia’s catalogues can be easily expanded. There are many different add-ons available containing new objects like comets or stars, high-resolution textures of Earth and other well mapped solar system bodies, as well as 3D models for asteroids and spacecraft on precise trajectories. Even fictional objects from well-known sci-fi franchises can be found. EULA(End User License Agreement): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: Celestia at none against SkyORB Classic Astronomy's shown. Celestia also leads on review sentiment (79% vs 54%) and update cadence (fortnightly vs every 2 months). 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. SkyORB Classic Astronomy sells 2 in-app purchases, starting at $1.99 per year and Celestia sells 4 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for SkyORB Classic Astronomy against 4.4 for Celestia. That said, the two scores are not equally well evidenced: Celestia has 339 ratings behind it against 24, so its average is the more settled of the two. Written reviews are what separate them: 54% of SkyORB Classic Astronomy's written reviews are positive against 79% of Celestia's.
SkyORB Classic Astronomy ships an update every 2 months, Celestia fortnightly. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.
| Parameter | SkyORB Classic Astronomy | Celestia |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (24 ratings) — better | 4.4 (339 ratings) |
| Positive reviews | 53.8% of reviews | 78.9% of reviews — better |
| Number of ratings | 24 | 339 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 143 MB | 550 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephane Denis | 林峰 李 |
Customer experience
SkyORB Classic Astronomy
Celestia
User reviews
SkyORB Classic Astronomy
From 24 App Store ratingsWhat we love
- 🌟 Great app for stargazing
- 🔍 Useful for identifying stars, planets, and constellations
- 📅 Helpful calendar of astronomical events
- 🌍 Accurate representation of the night sky
Room to improve
- 🤔 Confusing and unintuitive interface
- 🐛 Frequent crashes and bugs
- 💰 Paywall for many features
- 🔍 Inaccurate or missing information
- 🔌 Drains battery quickly
Celestia
From 339 App Store ratingsWhat we love
- ⭐ Realistic space simulation
- 🌌 Ability to explore galaxies and star systems
- 🔍 Detailed planet and moon textures
- 📷 Great for taking screenshots
- 🤖 Reminds users of Space Engine
Room to improve
- 🐛 Occasional crashes and glitches
- 🌌 Limited exploration beyond Milky Way and Andromeda
- 🌍 Flat terrain on planets
- 🔍 Lack of detail on some celestial objects
- 🔒 Paywall for some features
Bugs and requests
SkyORB Classic Astronomy
Reported bugs
4 issues- Compass and orientation issues
- Inconsistent behavior across devices
- Incorrect or outdated celestial data
- Persistent login and subscription problems
Requested features
4 requests- More detailed instructions and tutorials
- Improved search and navigation
- Ability to track comets and asteroids
- Seamless integration with telescopes
Celestia
Reported bugs
3 issues- Milky Way and other galaxy textures not loading properly
- Crashes when using certain add-ons
- Issues with planet and moon orbits not being accurate
Requested features
5 requests- Add more exoplanets and distant star systems
- Implement terrain generation for planets
- Expand to include more galaxies and the overall universe structure
- Add support for black holes, pulsars, and other exotic objects
- Improve controls and camera movement
In-app purchases
SkyORB Classic Astronomy
- 1-year Premium Subscription$1.991 Year
- Premium Version$3.99
Celestia
- Celestia PLUS (Weekly)7 Days trial$0.997 Days
- Celestia PLUS (Monthly)$1.991 Month
- Celestia PLUS (Yearly)$19.991 Year
- Celestia PLUS (Lifetime)$79.99
Questions
Is SkyORB Classic Astronomy free?
Is Celestia free?
Which has better reviews, SkyORB Classic Astronomy or Celestia?
Do SkyORB Classic Astronomy or Celestia have ads?
Which is updated more often, SkyORB Classic Astronomy or Celestia?
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