# Soil Explorer vs Geology Toolkit

The clearest difference is rating: Geology Toolkit at 4.6 against Soil Explorer's 4.1. Geology Toolkit also leads on update cadence (fortnightly vs every 11 months). Soil Explorer's advantage is in-app purchases (none vs 2). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Geology Toolkit sells 2 in-app purchases, starting at $2.99 per 7 days. Soil Explorer asks for nothing beyond the download.

Geology Toolkit holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 9 and 25 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Soil Explorer ships an update every 11 months, Geology Toolkit fortnightly. The most recent releases landed on September 19, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Soil Explorer | Geology Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (9 ratings)](https://appshunter.io/ios/app/soil-explorer/id996159565/reviews) | **[4.6 (25 ratings)](https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254/reviews)** |
| Number of ratings | 9 | **25** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 172 MB | 100 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) | [Laurence Wayne](https://appshunter.io/developer/1739552943) |

## 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


### Geology Toolkit

[App page](https://appshunter.io/ios/app/geology-toolkit-field-guide/id6745966254)

Identify rocks with AI and gain a deep understanding of their composition and formation. This app is designed for students and enthusiasts to learn geology beyond simple identification, offering clear explanations and visual tools for study and fieldwork.

**Highlights:** AI-powered rock identification, Detailed mineral composition insights, Student-friendly explanations, Sketch and visual tools for notes, Focus on geological understanding

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Geology AI Yearly Subscription | $24.99 | per year |


## Frequently asked questions

### Is Soil Explorer free?

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

### Is Geology Toolkit free?

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

### Which has better reviews, Soil Explorer or Geology Toolkit?

Geology Toolkit is rated higher. Soil Explorer averages 4.1 out of 5 from 9 ratings, while Geology Toolkit averages 4.6 from 25 ratings.

### Do Soil Explorer or Geology Toolkit have ads?

Neither Soil Explorer nor Geology Toolkit shows ads.

### Which is updated more often, Soil Explorer or Geology Toolkit?

Soil Explorer ships an update every 11 months, and Geology Toolkit fortnightly. Most recently, Soil Explorer was updated on September 19, 2026 and Geology Toolkit on September 26, 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.*