Comparison

Soil Explorer vs Geology

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Soil Explorer

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
Read full description

Explore detailed maps of soil properties and landscapes for various U.S. states, as well as small-scale maps of soil distributions for the world. Examine the details for a specific area, but also see the overview for a large area. Learn how features shown on the maps correspond to what you observe in the field. Soil Explorer utilizes detailed soil survey data from the USDA Natural Resources Conservation Service and data and maps from the U. S. Geological Survey and other sources to produce informative, highly engaging maps. These maps are designed to show the complex interrelationships between soil properties and the landscapes in which soils occur.

About

Geology

This app serves as a comprehensive personal guide for learning geology, offering a dictionary of terms with flashcards and visual explanations. It also includes video lectures and a detailed textbook covering major geological topics.

Highlights
  • Dictionary with key terms and definitions
  • Flashcards for memorization
  • Visual explanations of concepts
  • Searchable term database
  • 19 video lectures
  • Comprehensive textbook
Features
Read full description

Are your geology exam at the corner? Then our app is just for you! "Geology" is your personal helper that provides you with all information required. Can you just imagine that with the help of one mobile app you can easily learn geology? Downloading our app you get: ▶ TERMS • Dictionary with key terms and their definitions • Flashcards provided - an easier and smarter way of definitions to be organized and kept in mind • Visual explanations are also included • “Term search” allowing you to look for in all sections simultaneously makes the process of learning to be an easy one ▶ 19 VIDEO LECTURES ▶ TEXTBOOK • It covers major topics • Textbook is easy-to-read and easy-to-understand • The book divided into: - Weathering and Erosion - Stream Work - The Sea and Its Work - Glaciers and Their Work - The Action of Wind - Instability of the Earth’s Crust - Volcanoes and Igneous Rocks - Waters Within the Earth - How Mountains Come and Go - A Study of Lakes - How the Earth May Have Originated - Very Ancient Earth History - Ancient Earth History - Medieval Earth History - Modern Earth History - Evolution of Plants - Geological History of Animals (Excluding Vertebrates) - Geological History of Vertebrate Animals (Including Man) - Mineralogy - Economic Geology Stop being scared, download "Geology"!

Screenshots

Soil Explorer4 screens
Geology4 screens

Verdict

The call

The clearest difference is rating: Geology at 5.0 against Soil Explorer's 4.1. Geology also leads on iOS requirement (9.0 vs 14.7). Soil Explorer's advantage is in-app purchases (none vs 1) and ratings volume (9 vs 1). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Geology sells 1 one-off in-app purchase. Soil Explorer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Geology holds the better App Store score, 5.0 against 4.1. 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.

UpkeepUpdate frequency

Soil Explorer ships an update every 11 months, Geology every 6 months. The most recent releases landed on October 24, 2026 and September 18, 2026 respectively.

Scorecard5 real differences · 5 level
Soil Explorer versus Geology: the parameters behind the verdict, then further details
ParameterSoil ExplorerGeology
PriceFreeFree
Rating4.1 (9 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings9 — better1
Update frequencyEvery 11 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.79.0 — better
Further details — not scored
Size172 MB38 MB
Age rating4+4+
DeveloperPurdue UniversityAppCrab

Customer experience

Soil Explorer

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

Geology

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Soil Explorer

No in-app purchases

1 purchases

Geology

One-time1
  • Geology Premium$0.99

Questions

Is Soil Explorer free?
Soil Explorer is free to download, with no in-app purchases.
Is Geology free?
Geology is free to download, with in-app purchases available.
Which has better reviews, Soil Explorer or Geology?
Geology is rated higher. Soil Explorer averages 4.1 out of 5 from 9 ratings, while Geology averages 5.0 from 1 ratings.
Do Soil Explorer or Geology have ads?
Neither Soil Explorer nor Geology shows ads.
Which is updated more often, Soil Explorer or Geology?
Soil Explorer ships an update every 11 months, and Geology every 6 months. Most recently, Soil Explorer was updated on October 24, 2026 and Geology on September 18, 2026.

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