# Soil Explorer vs campGEO

The clearest difference is review sentiment: campGEO at 100% against Soil Explorer's 0%. campGEO also leads on rating (4.8 vs 4.1) and update cadence (every 2 weeks vs every 11 months). Soil Explorer's advantage is in-app purchases (none vs 10). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. campGEO sells 10 one-off in-app purchases. Soil Explorer asks for nothing beyond the download.

campGEO holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 9 and 24 respectively. Written reviews point the same way: 0% of Soil Explorer's written reviews are positive against 100% of campGEO's.

Soil Explorer ships an update every 11 months, campGEO every 2 weeks. The most recent releases landed on October 17, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Soil Explorer | campGEO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (9 ratings)](https://appshunter.io/ios/app/soil-explorer/id996159565/reviews) | **[4.8 (24 ratings)](https://appshunter.io/ios/app/campgeo/id6461216695/reviews)** |
| Number of ratings | 9 | **24** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 172 MB | 53 MB |
| Requires iOS | **14.7** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purdue University](https://appshunter.io/developer/371741257) | [Camp Courses](https://appshunter.io/developer/1702407589) |

## What reviewers say

### Soil Explorer

[App page](https://appshunter.io/ios/app/soil-explorer/id996159565)

Discover detailed soil property and landscape maps for U.S. states and global soil distributions. Understand how map features relate to real-world observations. This educational tool uses data from USDA and USGS to illustrate complex soil-landscape relationships.

**Highlights:** Detailed soil property maps, Landscape visualizations, Global soil distribution maps, Field observation correlation, USDA NRCS data integration, USGS data integration

**Features:** Vision Pro support

**In-app purchases:** none


### campGEO

[App page](https://appshunter.io/ios/app/campgeo/id6461216695)

This app offers audio discussions paired with visuals and transcripts for easier learning. Navigate audio content using images or text, and download materials for offline access. It's designed for convenient, on-the-go education.

**Highlights:** Audio discussions with key images, Linked transcripts for navigation, Offline listening support, Access to national parks books, Easy on-the-go learning

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Earth's Climate | $3.99 | one-time |
| The Geology of Mammoth Cave | $6.99 | one-time |
| Earth's Oldest Rocks | $8.99 | one-time |
| Long Valley Caldera | $9.99 | one-time |
| Geology Rocks! | $14.99 | one-time |
| Gettysburg | $14.99 | one-time |
| Roadside Geology of Colorado | $24.99 | one-time |
| The Grand Tetons | $24.99 | one-time |
| Yellowstone National Park | $29.99 | one-time |
| The Grand Canyon | $29.99 | one-time |


## Frequently asked questions

### Is Soil Explorer free?

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

### Is campGEO free?

campGEO is free to download, with in-app purchases available.

### Which has better reviews, Soil Explorer or campGEO?

campGEO is rated higher. Soil Explorer averages 4.1 out of 5 from 9 ratings, while campGEO averages 4.8 from 24 ratings.

### Do Soil Explorer or campGEO have ads?

Neither Soil Explorer nor campGEO shows ads.

### Which is updated more often, Soil Explorer or campGEO?

Soil Explorer ships an update every 11 months, and campGEO every 2 weeks. Most recently, Soil Explorer was updated on October 17, 2026 and campGEO on October 19, 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.*