Comparison

FertiCalc vs The Smartprobe App

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

Head to head
About

FertiCalc

Features
Read full description

This application assists farmers distribute fertilisers evenly in a field. It takes the recommended rate of fertiliser rate per hectare and works out the linear distance that given volume of fertiliser must cover. The calculator will work regardless of the size of container used to distribute the fertiliser. This calculator is also useful when calibrating the dispensing flow rate of equipment such as a knapsack fertiliser applicator.

About

The Smartprobe App

This application helps farmers and agronomists monitor soil health by collecting real-time soil compaction data. It generates detailed maps and customizable reports for informed field management and improved crop yields. Optimize your farming practices for increased productivity and sustainability.

Highlights
  • Real-time soil compaction readings
  • Detailed soil compaction maps
  • Customizable data reports
  • User-friendly interface
  • Grid overlays and soil moisture adjustability
Features
Read full description

Transform the way you manage your fields with the SmartProbe app. Designed for farmers, agronomists, and researchers, the SmartProbe System offers a revolutionary approach to understanding soil health. Here’s what you can expect: Real-Time Data: Collect readings and instantly visualize soil compaction in real-time. Detailed Mapping: Create comprehensive soil compaction maps to identify problem areas and optimize field management on every depth of the soil profile. User-Friendly Interface: Easily navigate through the app with intuitive controls and clear data presentation. Custom Reports: Generate and share detailed reports with your team or use for your own analysis. Advanced Analysis: Use our adjustable grid features and account for soil moisture to get the clearest picture of your soil structure. Features: Real-time soil compaction readings Detailed soil compaction maps Customizable data reports User-friendly interface Grid Overlays and Soil Moisture Adjustability Why Choose SmartProbe? Soil compaction can significantly impact crop yield and soil health. With the SmartProbe System, you gain the ability to "see" beneath the surface, allowing for informed decisions to improve soil structure and optimize farming practices. Start maximizing your productivity and sustainability today. Download Now to Start Your Journey toward Healthier Soil and Increased Profitability!

Screenshots

FertiCalc2 screens
The Smartprobe App4 screens

Verdict

The call

The clearest difference is update cadence: FertiCalc at every 3 days against The Smartprobe App's every 27 months. FertiCalc also leads on iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FertiCalc ships an update every 3 days, The Smartprobe App every 27 months. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 7 level
FertiCalc versus The Smartprobe App: the parameters behind the verdict, then further details
ParameterFertiCalcThe Smartprobe App
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 3 days — betterEvery 27 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better15.0
Further details — not scored
Size17 MB49 MB
Age rating4+4+
DeveloperRoedolf Johannes NieuwenhuisSmartprobe

In-app purchases

None

FertiCalc

No in-app purchases

None

The Smartprobe App

No in-app purchases

Questions

Is FertiCalc free?
FertiCalc is free to download, with no in-app purchases.
Is The Smartprobe App free?
The Smartprobe App is free to download, with no in-app purchases.
Do FertiCalc or The Smartprobe App have ads?
Neither FertiCalc nor The Smartprobe App shows ads.
Which is updated more often, FertiCalc or The Smartprobe App?
FertiCalc ships an update every 3 days, and The Smartprobe App every 27 months. Most recently, FertiCalc was updated on October 12, 2026 and The Smartprobe App on October 11, 2026.

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