Comparison

MRTN Rate Calculator vs Crop Nutrient advisor

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

Head to head
About

MRTN Rate Calculator

This utility calculates the optimal nitrogen fertilizer rate for crops based on agronomic research and current economic conditions. It provides a customized recommendation to maximize returns.

Highlights
  • Customized nitrogen rate recommendations
  • Combines agronomic research
  • Considers economic fluctuations
  • Maximizes return on investment
Read full description

The Maximum Return To Nitrogen (MRTN) calculations combine the agronomics of nitrogen rate research and the realities of economic fluctuations to provide a customized nitrogen rate.

About

Crop Nutrient advisor

Features
Read full description

Nutrient Technologies mobile app allows agricultural producers to instantly: ●Identify crop nutrient deficiencies ●Get product recommendations ●Check spray tank compatibility ●Download label and SDS ●And MORE! Growers, PCAs, or Plant Nutritionists can search for deficiency symptoms by crop to access images of visual symptoms. Got a better image? Upload a photo and add to our database. With a touch of a button, a list of products recommended to correct the deficiency or imbalance appears: with guaranteed analysis, suggested uses, benefits, and a compatibility statement. You can choose to download the complete product label and SDS for your records. New on this update is a crop nutrient sufficiency guide. Look up data by crop and tissue sample timing to know if you need to apply fertilizer and what kind. We have included a few reference guides to help you in the field: Mulder’s Chart shows antagonism and synergism of nutrients; a soil pH chart shows optimal range for plant nutrient uptake through the roots. We believe in agriculture. We develop products to help you unlock your crop’s full potential AND maximize your profits. Grow with us.

Screenshots

MRTN Rate Calculator3 screens

Verdict

The call

The clearest difference is iOS requirement: MRTN Rate Calculator at 10.0 against Crop Nutrient advisor's 13.0. On price, update cadence, 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.

UpkeepUpdate frequency

MRTN Rate Calculator ships an update every 5 months, Crop Nutrient advisor every 3 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

Scorecard1 real difference · 8 level
MRTN Rate Calculator versus Crop Nutrient advisor: the parameters behind the verdict, then further details
ParameterMRTN Rate CalculatorCrop Nutrient advisor
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size57 MB24 MB
Age rating4+4+
DeveloperUniversity of IllinoisNutrient Tech

In-app purchases

None

MRTN Rate Calculator

No in-app purchases

None

Crop Nutrient advisor

No in-app purchases

Questions

Is MRTN Rate Calculator free?
MRTN Rate Calculator is free to download, with no in-app purchases.
Is Crop Nutrient advisor free?
Crop Nutrient advisor is free to download, with no in-app purchases.
Do MRTN Rate Calculator or Crop Nutrient advisor have ads?
Neither MRTN Rate Calculator nor Crop Nutrient advisor shows ads.
Which is updated more often, MRTN Rate Calculator or Crop Nutrient advisor?
MRTN Rate Calculator ships an update every 5 months, and Crop Nutrient advisor every 3 months. Most recently, MRTN Rate Calculator was updated on November 1, 2026 and Crop Nutrient advisor on October 26, 2026.

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