Report updated May 12, 2026

TL;DR:Fertilizer Calc App serves a niche agricultural audience by automating nutrient-to-weight conversions, but its lack of a clear monetization model and minimal feature set leave it vulnerable to specialized competitors. The app provides basic utility but fails to retain users due to a lack of professional-grade features, so the PM must prioritize a usability audit to address the 1.0 rating before attempting to compete with broader agricultural suites..|TL;DR:Fertilizer Calc App serves a niche agricultural audience by automating nutrient-to-weight conversions, but its lack of a clear monetization model and minimal feature set leave it vulnerable to specialized competitors. The app provides basic utility but fails to retain users due to a lack of professional-grade features, so the PM must prioritize a usability audit to address the 1.0 rating before attempting to compete with broader agricultural suites..

Fertilizer Calc App is an established utilities app that is free with in-app purchases. With a 1.0/5 rating from 1 reviews, it shows polarized user reception.

What is Fertilizer Calc App?

Fertilizer Calc App is a utility tool for agricultural professionals to calculate nutrient requirements per field on iOS and Android.

Users hire the app to automate complex NPK-Mg-Ca weight conversions, reducing the manual labor required for field-specific fertilization planning.

Current Momentum

v3.4 · 3mo ago

Maintenance
  • No significant feature updates recently.
  • Minimal user engagement across platforms.
AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

Fragmented niche

No dominant direct rival identified yet — see Other Rivals below.

Other Rivals

Steel Sections
Orenda
Beam Calculator.
Percent Trading
Fence Mapster - Field GPS
Moro AgriExpert Farm Calc

7-Day Rank Pulse 🇺🇸

Utilities

No ranking data

Rating Pulse 🇺🇸

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

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What Are The Key Features?

Custom Area Unit ConversionDifferentiator

Allows users to define custom area units in square meters for field calculations

Fertilization Target SettingStandard

Enables input of N, P, K, MG, and CA targets per field to calculate required Kg/Ha

Field ManagementStandard

Enables creation and tracking of individual agricultural fields

How much does it cost?

Freemium
  • Free tier for basic calculation
  • Pro membership for multiple custom units

Freemium model gates advanced customization features behind a Pro membership to drive paid conversion.

Who Built It?

Alberto Giambone

View Publisher Intel →
Utilities

Enrichment in progress

Publisher profile available very soon

What other apps does Alberto Giambone make?

What do users think recently?

Analysis in progress, available soon

What is the competitive landscape for Fertilizer Calc App?

How's The Utilities Market?

Market outlook for this category

Available very soon

The rivals identified

Peers

Maintains a comprehensive commercial availability database that provides real-world procurement data beyond simple mathematical formulas.

Leverages long-term industry trust and a large, established user base that the target app currently lacks.

Integrates with a proprietary academy and rewards program, creating a strong ecosystem lock-in for pool professionals.

Boasts a massive user base and high review volume, establishing significant brand authority in the chemical calculation space.

Offers advanced structural analysis solvers that provide deeper engineering insights than basic fertilizer unit conversions.

Includes a monetization path via ad-removal IAP, whereas the target app lacks a clear revenue model.

Percent Trading

Percent Trading

5.0 (1)

Mehmet Bayram

This app competes for the same utility-focused user base that requires quick, percentage-based mathematical conversions for professional decision-making.

Provides a streamlined, multi-mode interface that simplifies complex calculations better than the target's manual input flow.

Focuses on growth and performance tracking metrics which offer more long-term utility than static fertilizer calculations.

New Kids on the Block

Fence Mapster - Field GPS

Fence Mapster - Field GPS

0

BMAC INFOTECH

While focused on mapping, this app targets the same agricultural professional audience who needs to manage field-specific data and measurements.

Integrates GPS-based field measurement and KML file support, offering spatial utility that the target app currently ignores.

Moro AgriExpert Farm Calc

Moro AgriExpert Farm Calc

0

BMAC INFOTECH

This newcomer directly overlaps with the target app's core agricultural niche by offering comprehensive fertilizer and pesticide dosage calculations.

Expands functionality beyond basic NPK calculations to include pesticide spray guides and boom spray calibration tools.

The outtake for Fertilizer Calc App

Strengths to defend, gaps to attack

Core Strengths

  • Custom area unit conversion allows for localized field measurement flexibility.

Critical Frictions

  • 1.0 rating on iOS indicates critical usability or technical failures.
  • Lack of a clear revenue model limits long-term development sustainability.
  • No cloud-sync or multi-device support for field data.

Growth Levers

  • Integration of GPS-based field measurement would match modern agricultural utility standards.
  • Expansion into pesticide and boom-spray calibration tools would address the primary competitive gap.

Market Threats

  • Moro AgriExpert's broader feature set drains the target audience's interest.
  • Lack of user base growth prevents the app from establishing brand authority.

What are the next best moves?

highPivot

Audit UI/UX flow because the 1.0 iOS rating indicates critical usability failure → stabilize user sentiment.

The 1.0 rating on iOS is a terminal signal for new-user conversion.

Trade-off: Pause all new feature development — fixing the core usability is the prerequisite for growth.

mediumInvest

Ship pesticide dosage calculation tools because competitors like Moro AgriExpert are capturing the broader farm-management market → improve competitive parity.

Competitor analysis shows pesticide guides are the primary differentiator for new entrants.

Trade-off: Deprioritize the Pro membership feature expansion — the current user base is too small to monetize.

A counter-intuitive read

The app's biggest risk is not its lack of features, but its current 'utility' focus which ignores the reality that farmers hire software for holistic field management, not just static math.

Feature Gaps vs Competitors

  • Pesticide spray guides (available in Moro AgriExpert)
  • Boom spray calibration tools (available in Moro AgriExpert)
  • GPS-based field measurement (available in Fence Mapster)

Key Takeaways

The app provides basic utility but fails to retain users due to a lack of professional-grade features, so the PM must prioritize a usability audit to address the 1.0 rating before attempting to compete with broader agricultural suites.

Where Is It Heading?

Declining

The agricultural utility market is consolidating around apps that offer comprehensive field-management workflows rather than single-purpose calculators. Fertilizer Calc App remains exposed because its current feature set is static and lacks the integration required to become a daily tool for farmers.

The 1.0 rating on iOS indicates critical usability failures that prevent the app from establishing a sustainable user base.

Newer competitors like Moro AgriExpert are expanding into pesticide and boom-spray tools, which directly erodes the target app's limited NPK-only niche.

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by Fertilizer Calc App, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Hope this helps & keep building! · Found an error?

What's new in this report

The analysis shifted from tactical bug-fixing to a broader critique of the app's lack of professional-grade features and sustainable revenue model.

shifted

Strategic Focus Pivot

added

New Weaknesses Identified

added

Expanded Feature Gaps

shifted

PM Action Item Re-prioritization

Cite this report

Marlvel.ai. “Fertilizer Calc App Intelligence Report.” Updated May 12, 2026. https://marlvel.ai/intel-report/utilities/fertilizer-calc-app

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