# JMARS AR Viewer vs Inside Earth

The clearest difference is rating: JMARS AR Viewer at 5.0 against Inside Earth's 4.7. Inside Earth's advantage is ratings volume (81 vs 3). On price, update cadence, 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.

JMARS AR Viewer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Inside Earth has 81 ratings behind it against 3, so its average is the more settled of the two.

JMARS AR Viewer ships an update monthly, Inside Earth fortnightly. Both last shipped on November 3, 2026.

## The numbers

| Metric | JMARS AR Viewer | Inside Earth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/jmars-ar-viewer/id1501733717/reviews)** | [4.7 (81 ratings)](https://appshunter.io/ios/app/inside-earth-crust-to-core/id1600729183/reviews) |
| Number of ratings | 3 | **81** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | Free |
| Size | 272 MB | 190 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robert Likamwa](https://appshunter.io/developer/1436236590) | [Sebastian Andre](https://appshunter.io/developer/1131259796) |

## What reviewers say

### JMARS AR Viewer

[App page](https://appshunter.io/ios/app/jmars-ar-viewer/id1501733717)

Explore planetary surfaces in augmented reality using immersive 3D terrain models. Access datasets for celestial bodies like the Moon, Mars, and Earth. Prepare custom scenes in the desktop version for an enhanced AR experience.

**Highlights:** Augmented Reality exploration, 3D terrain visualization, Access to planetary datasets, Custom scene preparation, Moon, Mars, Earth data

**Features:** macOS Compatibility

**In-app purchases:** none


### Inside Earth

[App page](https://appshunter.io/ios/app/inside-earth-crust-to-core/id1600729183)

Explore the Earth's interior by virtually peeling back its layers. Understand the composition of the crust, mantle, and core. Learn about tectonic plates, volcanism, and earthquakes.

**Highlights:** Interactive layer peeling, Tectonic plate visualization, Volcanism and earthquake explanation, Compositional learning, Geological process discovery

**In-app purchases:** none


## Frequently asked questions

### Is JMARS AR Viewer free?

JMARS AR Viewer is free to download, with no in-app purchases.

### Is Inside Earth free?

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

### Which has better reviews, JMARS AR Viewer or Inside Earth?

JMARS AR Viewer is rated higher. JMARS AR Viewer averages 5.0 out of 5 from 3 ratings, while Inside Earth averages 4.7 from 81 ratings.

### Do JMARS AR Viewer or Inside Earth have ads?

Neither JMARS AR Viewer nor Inside Earth shows ads.

### Which is updated more often, JMARS AR Viewer or Inside Earth?

JMARS AR Viewer ships an update monthly, and Inside Earth fortnightly. Most recently, JMARS AR Viewer was updated on November 3, 2026 and Inside Earth on November 3, 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.*