# Earth's Core vs Planet Fun

The clearest difference is rating: Planet Fun at 4.8 against Earth's Core's 4.3. Planet Fun also leads on update cadence (every 4 weeks vs every 70 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Planet Fun holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 4 and 8 respectively.

Earth's Core ships an update every 70 months, Planet Fun every 4 weeks. The most recent releases landed on August 31, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Earth's Core | Planet Fun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (4 ratings)](https://appshunter.io/ios/app/earths-core/id1220835186/reviews) | **[4.8 (8 ratings)](https://appshunter.io/ios/app/planet-fun/id1525941640/reviews)** |
| Number of ratings | 4 | **8** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 70 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 54 MB | 161 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celestial Dynamics AG](https://appshunter.io/developer/997250789) | [Omar reis](https://appshunter.io/developer/687921629) |

## 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


### Planet Fun

[App page](https://appshunter.io/ios/app/planet-fun/id1525941640)

Explore a 4D solar system simulation with accurate astronomical calculations for planets, moons, and stars. Interact with the celestial bodies using touch gestures, set any date and time, and even view your GPS position in augmented reality.

**Highlights:** 4D solar system simulation, Configurable animation speed, Augmented reality mode, Almanac module with ephemeris calculators, Touch gesture controls, Star and constellation visualization

**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 Planet Fun free?

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

### Which has better reviews, Earth's Core or Planet Fun?

Planet Fun is rated higher. Earth's Core averages 4.3 out of 5 from 4 ratings, while Planet Fun averages 4.8 from 8 ratings.

### Do Earth's Core or Planet Fun have ads?

Neither Earth's Core nor Planet Fun shows ads.

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

Earth's Core ships an update every 70 months, and Planet Fun every 4 weeks. Most recently, Earth's Core was updated on August 31, 2026 and Planet Fun on June 4, 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.*