Comparison

Soil Explorer vs microBIOMETER® Reader

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

microBIOMETER® Reader

This application offers a rapid, on-site soil testing solution to assess microbial biomass and fungal-to-bacterial ratios. It helps users understand soil health, track the effectiveness of management practices, and support sustainable farming by monitoring changes in soil biology and carbon storage.

Highlights
  • On-site soil testing
  • Microbial biomass analysis
  • Fungal to bacterial ratio
  • Track management practice effectiveness
  • Monitor soil biology changes
  • Cloud portal data export
  • Custom project creation
Read full description

microBIOMETER® is a low cost, 20-minute on-site soil test for microbial biomass and fungal to bacterial ratio that allows you to quickly determine the health of your soil using smartphone technology. Frequent retesting will provide you with the data necessary to identify if your soil management practices are working. Quickly assess how amendments impact soil microbial biomass, ensuring your management practices are effective. Monitor changes in soil biology, increase carbon storage, and support sustainable
farming practices. View, edit, and export data to Excel using our Cloud Portal. Create custom projects with our Project Management feature and share soil test results with team members.

Screenshots

Soil Explorer4 screens
microBIOMETER® Reader4 screens

Verdict

The call

The clearest difference is rating: microBIOMETER® Reader at 5.0 against Soil Explorer's 4.1. microBIOMETER® Reader also leads on update cadence (every 5 weeks vs every 11 months) and review sentiment (20% vs 0%). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

microBIOMETER® Reader holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 9 and 7 respectively. Written reviews point the same way: 0% of Soil Explorer's written reviews are positive against 20% of microBIOMETER® Reader's.

UpkeepUpdate frequency

Soil Explorer ships an update every 11 months, microBIOMETER® Reader every 5 weeks. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
Soil Explorer versus microBIOMETER® Reader: the parameters behind the verdict, then further details
ParameterSoil ExplorermicroBIOMETER® Reader
PriceFreeFree
Rating4.1 (9 ratings)5.0 (7 ratings) — better
Positive reviews0.0% of reviews20.0% of reviews — better
Number of ratings9 — better7
Update frequencyEvery 11 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.7 — better15.0
Further details — not scored
Size172 MB106 MB
Age rating4+9+
DeveloperPurdue UniversityProlific Earth Sciences Corporation

Customer experience

Soil Explorer

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

microBIOMETER® Reader

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

In-app purchases

None

Soil Explorer

No in-app purchases

None

microBIOMETER® Reader

No in-app purchases

Questions

Is Soil Explorer free?
Soil Explorer is free to download, with no in-app purchases.
Is microBIOMETER® Reader free?
microBIOMETER® Reader is free to download, with no in-app purchases.
Which has better reviews, Soil Explorer or microBIOMETER® Reader?
microBIOMETER® Reader is rated higher. Soil Explorer averages 4.1 out of 5 from 9 ratings, while microBIOMETER® Reader averages 5.0 from 7 ratings.
Do Soil Explorer or microBIOMETER® Reader have ads?
Neither Soil Explorer nor microBIOMETER® Reader shows ads.
Which is updated more often, Soil Explorer or microBIOMETER® Reader?
Soil Explorer ships an update every 11 months, and microBIOMETER® Reader every 5 weeks. Most recently, Soil Explorer was updated on September 27, 2026 and microBIOMETER® Reader on September 30, 2026.

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