# Earth's Core vs Astris

The clearest difference is update cadence: Astris at every 3 months against Earth's Core's every 70 months. Earth's Core's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Earth's Core ships an update every 70 months, Astris every 3 months. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Earth's Core | Astris |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/earths-core/id1220835186/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 70 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 54 MB | 21 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celestial Dynamics AG](https://appshunter.io/developer/997250789) | [ISTITUTI EDMONDO DE AMICIS SRL](https://appshunter.io/developer/1219261025) |

## What reviewers say

### Earth's Core

[App page](https://appshunter.io/ios/app/earths-core/id1220835186)

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.

**Highlights:** Visualize Earth's internal structure, Explore planet layers, Discover layer temperatures, Learn layer depths, Detailed look inside the planet

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Astris

[App page](https://appshunter.io/ios/app/astris/id6454899891)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Earth's Core free?

Earth's Core is free to download, with no in-app purchases.

### Is Astris free?

Astris is free to download, with no in-app purchases.

### Do Earth's Core or Astris have ads?

Neither Earth's Core nor Astris shows ads.

### Which is updated more often, Earth's Core or Astris?

Earth's Core ships an update every 70 months, and Astris every 3 months. Most recently, Earth's Core was updated on October 16, 2026 and Astris on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*