Comparison

Cosmic vs EarthPhase

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

EarthPhase

Explore a beautifully designed, interactive solar system with real-time celestial data. Track moon and Earth phases, view planet positions, and travel through time to discover cosmic events and facts.

Highlights
  • Interactive solar system map
  • Real-time moon and Earth phases
  • Home and lock screen widgets
  • Time travel slider for past/future events
  • Discover cosmic facts and mechanics
  • Accurate planet positions and orbits
Features
Read full description

EarthPhase is your personal, beautifully designed pocket solar system, with all features completely free. Built with a stunning matte, low-key aesthetic, it brings the exact state of the solar system directly to your device. Whether you are an astronomy enthusiast or simply love a clean, minimalist Home Screen, EarthPhase tracks the cosmos in real-time. WIDGET SUITE Never miss a cosmic event. EarthPhase offers a variety of widgets designed to blend seamlessly with your custom setups: Home Screen Trackers: Keep an eye on the current Moon and Earth phases with perfectly rendered, dynamic icons. Lock Screen Data: Add circular planet icons or detailed rectangular widgets that display the exact live illumination percentage of the Moon or Earth right below your clock. Live Solar System: Place a dynamic map of the inner and outer planets on your Home Screen, available in multiple sizes. INTERACTIVE SOLAR SYSTEM Dive into the app to explore a highly accurate, interactive schematic of our solar system. Tap any planet to zoom in on its specific orbit, view its position relative to the Sun, and explore its major moons. TIME TRAVEL SLIDER Wondering what the moon phase was on the day you were born? Or when the next supermoon will happen? Use the precision control panel to scrub backward and forward through time. The entire solar system and moon phase engine will smoothly animate to reflect the exact celestial state of any date and time you choose. DISCOVER THE COSMOS Expand your knowledge with a massive library of scientifically accurate, lesser-known facts. Learn about the bizarre orbital mechanics of Jupiter's outer moons, the metal snow on Venus, or the true scale of the Martian canyons.

Screenshots

Cosmic4 screens
EarthPhase4 screens

Verdict

The call

The clearest difference is monetization model: EarthPhase at free against Cosmic's free with in-app purchases. Cosmic's advantage is ratings volume (636 vs 3) and device support (3 vs 1). On price, rating, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Cosmic sells 6 in-app purchases, starting at $0.99 per month and EarthPhase sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

EarthPhase holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Cosmic has 636 ratings behind it against 3, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
Cosmic versus EarthPhase: the parameters behind the verdict, then further details
ParameterCosmicEarthPhase
PriceFreeFree
Rating4.8 (636 ratings)5.0 (3 ratings) — better
Positive reviews86.8% of reviews—
Number of ratings636 — better3
Update frequencyEvery 6 months—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.6
Further details — not scored
Size194 MB40 MB
Age rating4+4+
DeveloperCelestial Dynamics AGNathan Coleman

Customer experience

Cosmic

All ratings624 ratings
Positive96.5%
Neutral1.1%
Negative2.4%
Written reviews152 reviews
Positive86.8%
Neutral3.9%
Negative9.2%

EarthPhase

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

EarthPhase

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Cosmic

Subscriptions4
  • Monthly Plan$0.991 Month
  • Monthly$2.991 Month
  • Yearly Plan$4.991 Year
Show 1 more
  • Yearly$24.991 Year
One-time2
  • Tools Pack$2.99
  • Cosmic Pro$69.99
2 purchases

EarthPhase

One-time2
  • Tip$0.99
  • Tip$4.99

Questions

Is Cosmic free?
Cosmic is free to download, with in-app purchases available.
Is EarthPhase free?
EarthPhase is free to download, with in-app purchases available.
Which has better reviews, Cosmic or EarthPhase?
EarthPhase is rated higher. Cosmic averages 4.8 out of 5 from 636 ratings, while EarthPhase averages 5.0 from 3 ratings.
Do Cosmic or EarthPhase have ads?
Neither Cosmic nor EarthPhase shows ads.

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