# Soil Explorer vs Strat Mobile

The clearest difference is rating: Soil Explorer at 4.1 against Strat Mobile's 1.0. Soil Explorer also leads on ratings volume (9 vs 1). Strat Mobile's advantage is update cadence (monthly vs every 11 months) and iOS requirement (10.0 vs 14.7). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Soil Explorer holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Soil Explorer has 9 ratings behind it against 1, so its average is the more settled of the two.

Soil Explorer ships an update every 11 months, Strat Mobile monthly. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Soil Explorer | Strat Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (9 ratings)](https://appshunter.io/ios/app/soil-explorer/id996159565/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/strat-mobile/id1289101464/reviews) |
| Number of ratings | **9** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Monthly** |
| Monetization | Free | Free |
| Size | 172 MB | 8 MB |
| Requires iOS | 14.7 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Purdue University](https://appshunter.io/developer/371741257) | [Richard Allmendinger](https://appshunter.io/developer/1194772609) |

## 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


### Strat Mobile

[App page](https://appshunter.io/ios/app/strat-mobile/id1289101464)

This application allows geologists to measure and record stratigraphic sections directly on their mobile devices. It offers multiple measurement methods, including using the device's camera or a traditional Jacob Staff, and automatically logs location and time data. Users can define lithology types, view statistics, and see section locations on a map.

**Highlights:** Real-time stratigraphic section plotting, Measure sections using device camera or Jacob Staff, Automatic recording of location, time, and date, Define unlimited lithology types with custom colors, Basic statistics on lithology thicknesses and percentages, View section locations on satellite or road maps

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Soil Explorer free?

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

### Is Strat Mobile free?

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

### Which has better reviews, Soil Explorer or Strat Mobile?

Soil Explorer is rated higher. Soil Explorer averages 4.1 out of 5 from 9 ratings, while Strat Mobile averages 1.0 from 1 ratings.

### Do Soil Explorer or Strat Mobile have ads?

Neither Soil Explorer nor Strat Mobile shows ads.

### Which is updated more often, Soil Explorer or Strat Mobile?

Soil Explorer ships an update every 11 months, and Strat Mobile monthly. Most recently, Soil Explorer was updated on October 17, 2026 and Strat Mobile on October 8, 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.*