Comparison

Solar System Scope vs Earth Rotation

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

Head to head
About

Solar System Scope

Explore and discover the solar system and outer space with realistic 3D visualizations and detailed celestial simulations. This app offers an educational and engaging experience for all ages, featuring a comprehensive encyclopedia and a night sky observatory.

Highlights
  • 3D Encyclopedia of celestial bodies
  • Realistic 3D visualizations
  • Night sky observatory with time simulation
  • Accurate orbital parameter calculations
  • High-quality planetary and moon maps
  • Multilingual support
Features
Read full description

Solar System Scope is a fun way of Exploring, Discovering and Playing with the Solar System and Outer Space. Solar System Scope (or just Solar) contains many views and celestial simulations, but most of all - it brings you closer to the furthest reaches of our world and lets you experience lots of fantastic space sceneries. It aspires to be the most illustrative, easy to understand and simple to use space model. - 3D Encyclopedia In Solar’s unique encyclopedia you will find the most interesting facts about every planet, dwarf planet, every major moon and more – and everything is accompanied by realistic 3D visualizations. Solar’s encyclopedia is available in 10 languages: English, Spanish, German, Russian, Italian, Korean and Slovak. More languages are coming soon! - Nightsky Observatory Enjoy Stars and constellation of the night sky as viewed from any given location on Earth. You can point your device at the sky to see all objects in their proper place, but you can also simulate Night sky in the past or in the future. Now with advanced options that let you simulate ecliptic, equatorial and azimuthal line, or grid (among other things). - Scientific Instrument Solar System Scope calculations are based on up-to-date orbital parameters published by NASA and let you simulate celestial positions at any given time. - For Everyone Solar System Scope is well suited for all audiences and ages: It is enjoyed by space enthusiasts, teachers, scientists, but Solar is successfully used even by children of 4+ years of age! - Unique Maps We are proud to present a very unique set of planetary and moon maps, that let you experience a true-color space as never before. These accurate maps are based on NASA elevation and imagery data. Colors and shades of the textures are tuned according to true-color photos made by Messenger, Viking, Cassini and New Horizon spacecrafts, and the Hubble Space Telescope. Basic resolution of these maps is for free – but if you would like the best experience, you can check out the highest quality, which is available with In-App purchase. - Join our vision Our vision is to build the ultimate space model and bring you the deepest space experience. And you can help - try Solar System Scope and if you like it, spread the word! And don’t forget to join the community and vote for new features on our homepage.

About

Earth Rotation

Explore a 3D simulation of celestial bodies. Adjust rotation speeds, reverse direction, and alter lighting angles. Choose from three distinct Earth visual styles for an interactive learning experience.

Highlights
  • Adjustable rotation speed
  • Reverse rotation direction
  • Adjustable sun lighting angle
  • Three Earth visual styles
  • 3D celestial animation
Features
Read full description

This is a 3D animation in which the sun, the earth, and the moon rotate. -You can change the rotation speed. The fastest is 1 second, and the slowest is 300 seconds to make one revolution. -It can rotate in the reverse direction, which is not possible in the natural world. -The earth and the moon can change the light from the sun by 30 degrees. -There are three types of earth: night lights, nature, and globes.

Screenshots

Solar System Scope4 screens
Earth Rotation4 screens

Verdict

The call

The clearest difference is price: Solar System Scope at Free against Earth Rotation's $0.99. Solar System Scope also leads on update cadence (every 4 months vs every 22 months) and ratings volume (894 vs 1). Earth Rotation's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 1). On ads and device support 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

Solar System Scope is free to download; Earth Rotation costs $0.99 up front. Solar System Scope sells 1 one-off in-app purchase. Earth Rotation asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Earth Rotation holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Solar System Scope has 894 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Solar System Scope ships an update every 4 months, Earth Rotation every 22 months. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Solar System Scope versus Earth Rotation: the parameters behind the verdict, then further details
ParameterSolar System ScopeEarth Rotation
PriceFree — better$0.99
Rating4.4 (894 ratings)5.0 (1 ratings) — better
Positive reviews76.7% of reviews—
Number of ratings894 — better1
Update frequencyEvery 4 months — betterEvery 22 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size154 MB46 MB
Age rating4+17+
DeveloperINOVE, s.r.o.Masahiro Tomosada

Customer experience

Solar System Scope

All ratings882 ratings
Positive83.7%
Neutral4.5%
Negative11.8%
Written reviews240 reviews
Positive76.7%
Neutral6.3%
Negative17.1%

Earth Rotation

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

Bugs and requests

Solar System Scope

Reported bugs

4 issues
  • Crashes when dragging Jupiter
  • Upside-down orientation on tablets
  • Unable to restore purchases
  • Freezes and crashes on launch

Requested features

5 requests
  • Add more celestial bodies (Messier objects, Planet 9/10, black holes, etc.)
  • Enable exploration of other galaxies and deep space objects
  • Improve telescope/zoom functionality
  • Add more moons and irregular satellites
  • Implement continental drift and solar system evolution

Earth Rotation

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Solar System Scope

One-time1
  • HQ Textures / No Ads$5.99
None

Earth Rotation

No in-app purchases

Questions

Is Solar System Scope free?
Solar System Scope is free to download, with in-app purchases available.
Is Earth Rotation free?
Earth Rotation costs $0.99, with no in-app purchases.
Which has better reviews, Solar System Scope or Earth Rotation?
Earth Rotation is rated higher. Solar System Scope averages 4.4 out of 5 from 894 ratings, while Earth Rotation averages 5.0 from 1 ratings.
Do Solar System Scope or Earth Rotation have ads?
Neither Solar System Scope nor Earth Rotation shows ads.
Which is updated more often, Solar System Scope or Earth Rotation?
Solar System Scope ships an update every 4 months, and Earth Rotation every 22 months. Most recently, Solar System Scope was updated on October 24, 2026 and Earth Rotation on October 8, 2026.

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