Earth's Core vs Satellite Rotation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Earth's Core
Explore the internal structure of our planet with a detailed view of Earth's layers. Discover the composition, temperature, and depth of each section, from the crust to the core. This educational tool provides a fascinating look beneath your feet.
- Visualize Earth's internal structure
- Explore planet layers
- Discover layer temperatures
- Learn layer depths
- Detailed look inside the planet
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The Earth's Core App lets you see our planet’s internal structure. Just point your mobile to the center of the Earth and experience a deep look inside our planet. Right beneath your feet, thousands of kilometers deep, lies a giant ball of molten Iron as hot as the surface of the sun! Explore the Layers of the Earth and their names, discover the temperature and depth of each layer. Feedback and ideas: please send to support@cosmic-watch.com
Satellite Rotation
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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) ･You can change the rotation speed of the satellite. ･When you press the button, the angle of the sun changes by 30 degrees each time. ･The fastest thing is one revolution per second.The slowest thing is one rotation in 300 seconds (5 minutes). ･When checked, reverse rotation will occur.
Screenshots
Verdict
The clearest difference is price: Earth's Core at Free against Satellite Rotation's $0.99. Satellite Rotation's advantage is update cadence (every 7 months vs every 70 months). On ads, 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
Earth's Core is free to download; Satellite Rotation costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Earth's Core ships an update every 70 months, Satellite Rotation every 7 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.
| Parameter | Earth's Core | Satellite Rotation |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.3 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 70 months | Every 7 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 31 MB |
| Age rating | 4+ | 17+ |
| Developer | Celestial Dynamics AG | Masahiro Tomosada |
In-app purchases
Earth's Core
No in-app purchases
Satellite Rotation
No in-app purchases
Questions
Is Earth's Core free?
Is Satellite Rotation free?
Do Earth's Core or Satellite Rotation have ads?
Which is updated more often, Earth's Core or Satellite Rotation?
Other comparisons
