Soil Explorer vs microBIOMETER® Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Detailed soil property maps
- Landscape visualizations
- Global soil distribution maps
- Field observation correlation
- USDA NRCS data integration
- USGS data integration
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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.
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | Soil Explorer | microBIOMETER® Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (9 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 0.0% of reviews | 20.0% of reviews — better |
| Number of ratings | 9 — better | 7 |
| Update frequency | Every 11 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.7 — better | 15.0 |
| Further details — not scored | ||
| Size | 172 MB | 106 MB |
| Age rating | 4+ | 9+ |
| Developer | Purdue University | Prolific Earth Sciences Corporation |
Customer experience
Soil Explorer
microBIOMETER® Reader
In-app purchases
Soil Explorer
No in-app purchases
microBIOMETER® Reader
No in-app purchases
Questions
Is Soil Explorer free?
Is microBIOMETER® Reader free?
Which has better reviews, Soil Explorer or microBIOMETER® Reader?
Do Soil Explorer or microBIOMETER® Reader have ads?
Which is updated more often, Soil Explorer or microBIOMETER® Reader?
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