Earth's Core vs Mega Constellations
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
Mega Constellations
Explore the visual impact of large satellite networks on the night sky. This simulator shows how current and planned mega-constellations affect stargazing based on your location, time, and date.
- Simulates mega-constellation orbits
- Visualizes impact on stargazing
- Adjustable location, time, and date
- Explores effects on astronomy
- Shows current and planned constellations
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A mega-constellation is a collection of man-made satellites orbiting the earth. They operating together to provide internet and other communication services. Because constellations span the entire globe, they have potential to aid society through enhanced connectivity of remote communities and search and rescue capabilities. However, because the satellites reflect sunlight many of them will be visible to the naked eye. The Constellations App simulates the orbits of current and planned mega-constellations. This allows you to explore the effects that these constellations will have on stargazing and astronomy depending on location, time, and date.
Screenshots
Verdict
The clearest difference is rating: Mega Constellations at 5.0 against Earth's Core's 4.3. Mega Constellations also leads on update cadence (every 5 days vs every 70 months). Earth's Core's advantage is in-app purchases (none vs 1) and ratings volume (4 vs 1). On price, ads, monetization model 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
Both are free to download. Mega Constellations sells 1 one-off in-app purchase. Earth's Core asks for nothing beyond the download.
Mega Constellations holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Earth's Core ships an update every 70 months, Mega Constellations every 5 days. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.
| Parameter | Earth's Core | Mega Constellations |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 70 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 54 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | Celestial Dynamics AG | Hanno Rein |
Customer experience
Earth's Core
Mega Constellations
In-app purchases
Earth's Core
No in-app purchases
Mega Constellations
- Developer Appreciation Coffee$1.99
Questions
Is Earth's Core free?
Is Mega Constellations free?
Which has better reviews, Earth's Core or Mega Constellations?
Do Earth's Core or Mega Constellations have ads?
Which is updated more often, Earth's Core or Mega Constellations?
Other comparisons
