Cosmic vs Armillary Sphere
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cosmic
Explore the cosmos with this app that offers interactive tools for celestial navigation and astronomical observation. Visualize the sky, Earth, and solar system from multiple perspectives, and discover constellations, planets, and events in augmented reality. It's a blend of ancient wisdom and modern technology for a deeper connection to the universe.
- Multiple celestial perspectives (sky, Earth, solar system)
- Augmented reality sky exploration
- Interactive astronomical and world clocks
- Visualized natal charts (Western, Vedic, Sidereal)
- Day/night cycles on Earth globe
- Celestial navigation guides
- Notifications for astronomical events
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The sky above you, the Earth beneath you, the solar system you move through space. Three perspectives no other app combines this way. For thousands of years humans read the sky to measure time, navigate the Earth, and find meaning in their existence. Astronomy, astrology, and timekeeping were one science. Cosmic Watch reunites them. Free for the first time in ten years. FEATURES (core) • Sky View — stars, planets, and constellations • Earth View — day and night cycle, the cosmos around it • Solar System — geocentric and heliocentric • Celestial sphere — full 360° sky overview, unique to this app • Astrology Mode — Western, Vedic and 3D • Retrograde motion across all planets • World clock and astronomical events • Notifications for eclipses, solstices, and moon cycles • Celestial navigation — orient yourself by the sky Or just watch the Earth float in space and remember where you are. Free to explore. The three views, sky guide, every layer, star names, world clock, and notifications are yours from the first open. Tools and Time Control unlock with a subscription — or forever with Cosmic Pro. Keep the project alive and growing. We read every message you send us. TOOLS (in-app purchase) • Moon Calendar • Real-Time Clouds • Meteor Showers • Comets • Planetary Aspects • Retrograde Year • Dreamspell Calendar • Atmosphere Clockface • Save Date / Time / Location • Time Control — move forward and back, any moment A full app. Not a widget or watch face, yet. Runs on iPhone, iPad, and Apple Silicon Mac Privacy committed: No account required. Analytics never shared. Webby Award for Best Educational App 2018. New York Times. Wired. Space.com. By a Chi Gong master and an animation artist. Still looking up. Time is the Cosmic Rhythm. Terms of Use: https://cosmic-watch.com/termsOfService/ Privacy Policy: https://cosmic-watch.com/privacyPolicy/
Armillary Sphere
Explore the cosmos with this 3D astronomical tool. Measure and record the positions and movements of celestial bodies, and determine sunrise/sunset times and day length. Reconstructs an ancient scientific instrument using modern technology.
- 3D astronomical model
- Measure celestial positions
- Record Sun and star movements
- Determine sunrise/sunset times
- Calculate day length
- Adjustable Meridian, Equator, Horizon, Ecliptic, Altitude
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Armillary is a handy astronomical application for measurement and recording specific times, locations and movement of the Sun and the stars, based on a Ptolemaic model. With this app, we can easily determine the time and position of sunrise and sunset, the length of a day, the altitude of the sun at different times of the year and the position of celestial objects. This 3-dimensional Armillary app reconstructs the ancient armillary sphere with the help of modern technology. The ancient device, believed to be first invented around 200 B.C., had been in use for over 2,000 years in history. FEATURES • This modern-day counterpart can be displayed in any scale and rotated by any angle. • You can make desired measurements by making relevant adjustment of the “Meridian”, “Equator”, “Horizon”, “Ecliptic” and “Altitude” on the app. USER CONTROLS • Touch-screen rotation – Gently swipe or slide fingers for desired rotation of armillary sphere rings • Swipe-touch panel – Swipe fingers on the display panel for desired movement of armillary sphere rings • Pinch-to-zoom – Use index finger and the thumb in a pinch motion to enlarge or shrink the screen as desired.
Screenshots
Verdict
The clearest difference is rating: Cosmic at 4.8 against Armillary Sphere's 4.0. Cosmic also leads on ratings volume (636 vs 6). Armillary Sphere's advantage is in-app purchases (none vs 6) and iOS requirement (9.0 vs 15.0). On price, review sentiment, update cadence 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
Both are free to download. Cosmic sells 6 in-app purchases, starting at $0.99 per month. Armillary Sphere asks for nothing beyond the download.
Cosmic holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Cosmic has 636 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 87% of Cosmic's written reviews are positive against 86% of Armillary Sphere's.
Cosmic ships an update every 6 months, Armillary Sphere every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Cosmic | Armillary Sphere |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (636 ratings) — better | 4.0 (6 ratings) |
| Positive reviews | 86.8% of reviews — better | 85.7% of reviews |
| Number of ratings | 636 — better | 6 |
| Update frequency | Every 6 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 194 MB | 275 MB |
| Age rating | 4+ | 4+ |
| Developer | Celestial Dynamics AG | HKU TELI |
Customer experience
Cosmic
Armillary Sphere
Bugs and requests
Cosmic
Reported bugs
3 issues- Date and time not accurately reflected in the solar system view
- Inconsistent behavior when switching between different modes and settings
- Difficulty in maintaining user preferences across sessions
Requested features
5 requests- Add an alarm feature to wake up to different celestial views
- Implement support for Apple Watch and other wearables
- Provide more options to customize the display and information layers
- Include a night mode or dimmer setting for better visibility in low light
- Integrate with other astronomy apps and tools for a more comprehensive experience
Armillary Sphere
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Cosmic
- Monthly Plan$0.991 Month
- Monthly$2.991 Month
- Yearly Plan$4.991 Year
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- Yearly$24.991 Year
- Tools Pack$2.99
- Cosmic Pro$69.99
Armillary Sphere
No in-app purchases
Questions
Is Cosmic free?
Is Armillary Sphere free?
Which has better reviews, Cosmic or Armillary Sphere?
Do Cosmic or Armillary Sphere have ads?
Which is updated more often, Cosmic or Armillary Sphere?
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