Comparison

Solar System&Celestial Objects vs Satellite 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&Celestial Objects

Features
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Easy learning about solar system, stars, celestial objects, constellations, spacecraft with pictures ,sounds and quiz games. If you who always search and learn a quiz app like these, this app is for you ① Solar system Flash card app. ② Stars Quiz app. ③ Celestial objects quiz app. ④ Stars history and information app. ⑤ Constellations name cards. ⑥ Guess solar system app. Features: - You can learn many kinds of stars. - You can play solar system quiz. - Many information related to solar system, stars, celestial objects, constellations, spacecraft - Support Quiz feature. - Support 5 languages: English, Japanese, Korean, Chinese, Vietnamese

About

Satellite Rotation

Features
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These are 3D animations of the top 10 largest satellites in the solar system. 1.Ganymede : Satellite of Jupiter radius : 2,632km (1.52 times the moon) 2.Titan : Satellite of Saturn radius : 2,575km (1.48 times the moon) 3.Callisto : Satellite of Jupiter radius : 2,409km (1.39 times the moon) 4.Io : Satellite of Jupiter radius : 1,821km (1.05 times the moon) 5.Moon : Satellite of Earth radius : 1,737km 6.Europa : Satellite of Jupiter radius : 1,562km (0.9 times the moon) 7.Triton : Satellite of Neptune radius : 1,353km (0.78 times the moon) 8.Titania : Satellite of Uranus radius : 789km (0.45 times the moon) 9.Rhea : Satellite of Saturn radius : 764km (0.44 times the moon) 10.Oberon : Satellite of Uranus radius : 761km (0.44 times the moon) ï½¥You can change the rotation speed of the satellite. ï½¥When you press the button, the angle of the sun changes by 30 degrees each time. ï½¥The fastest thing is one revolution per second.The slowest thing is one rotation in 300 seconds (5 minutes). ï½¥When checked, reverse rotation will occur.

Screenshots

Solar System&Celestial Objects4 screens
Satellite Rotation4 screens

Verdict

The call

The clearest difference is price: Solar System&Celestial Objects at Free against Satellite Rotation's $0.99. Solar System&Celestial Objects also leads on update cadence (every 6 weeks vs every 7 months). Satellite Rotation's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement 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&Celestial Objects is free to download; Satellite Rotation costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Solar System&Celestial Objects ships an update every 6 weeks, Satellite Rotation every 7 months. The most recent releases landed on October 2, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 3 level
Solar System&Celestial Objects versus Satellite Rotation: the parameters behind the verdict, then further details
ParameterSolar System&Celestial ObjectsSatellite Rotation
PriceFree — better$0.99
Update frequencyEvery 6 weeks — betterEvery 7 months
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size62 MB31 MB
Age rating4+17+
DeveloperNIKI TECHMasahiro Tomosada

In-app purchases

None

Solar System&Celestial Objects

No in-app purchases

None

Satellite Rotation

No in-app purchases

Questions

Is Solar System&Celestial Objects free?
Solar System&Celestial Objects is free to download, with no in-app purchases.
Is Satellite Rotation free?
Satellite Rotation costs $0.99, with no in-app purchases.
Do Solar System&Celestial Objects or Satellite Rotation have ads?
Solar System&Celestial Objects shows ads; Satellite Rotation does not.
Which is updated more often, Solar System&Celestial Objects or Satellite Rotation?
Solar System&Celestial Objects ships an update every 6 weeks, and Satellite Rotation every 7 months. Most recently, Solar System&Celestial Objects was updated on October 2, 2026 and Satellite Rotation on October 8, 2026.

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