Best apps like NPK Calculator

29+ similar apps compared and reviewed

4.3 avg rating
8 free apps
Updated July 2026

Looking for something like NPK Calculator? We've analyzed 29+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

KobCard

KobCard by KOB MARKETING

Gift Card Information Platform
📊 Productivity
4.0(62 ratings)
Free
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KobCard is a comprehensive gift card information platform that offers real-time exchange rates, price calculations, and the latest news on gift cards. It serves as a one-stop destination for individuals looking to buy, sell, or stay informed about the world of gift cards.

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Top Alternatives to NPK Calculator

Vital Hi-Calc#1

Vital Hi-Calc by Vital Fertilizers LLC

Editor's Choice
📊 Productivity
5.0(2 ratings)
Free
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This app helps farmers calculate balanced fertilizer formulas, concentrated solutions, and application rates for various crops. It allows for the creation of custom nutrition programs or following expert recommendations, optimizing plant nutrition and growth.

KNF Solutions#3

KNF Solutions by Eric Weinert

Calculate Natural Farm Formula
Worth Considering
📊 Productivity
4.7(11 ratings)
$3.99
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This app helps users accurately calculate natural farming solutions for various stages of plant growth. It provides recipes and dilution ratios for common Korean Natural Farming inputs like FPJ and FAA, ensuring precise application.

More apps like NPK Calculator

4
Aqua Box
Aqua Box
Aqua Box
Aquarium Manager
$1.99

Manage freshwater, brackish water aquariums, and ponds with detailed tracking of water parameters, livestock, and equipment. Schedule maintenance, receive reminders, and visualize progress with snapshots and graphs. Share your data with others and sync across Apple devices.

Water parameter tracking (pH, temp, salinity, etc.)Livestock and plant loggingMaintenance reminders and scheduling
📊 Productivity
(47)
paid
5
Ophaya Pro+
Ophaya Pro+
Ophaya Pro+
by 啟思文化
Free

Capture your handwritten notes digitally with instant storage, retrieval, and sharing. This app works with smart pens and notebooks, allowing you to write traditionally while enjoying digital convenience. It supports offline writing and synchronized audio recording for comprehensive review.

Instant digital storageQuick retrieval of notesEasy sharing of written content
📊 Productivity
(17)
free
6
BizBud
BizBud
BizBud
Growing Management
Free

This field management app helps farmers track payroll, expenses, sales, investments, and inventory. It functions both offline and online, allowing for team and accountant collaboration to improve financial management and profitability.

Field logbookPayroll trackingExpense management
📊 Productivity
(1)
free with in-app purchases
7
Rastafarian Calendar
Rastafarian Calendar
Rastafarian Calendar
Holiday, Reminder, World Clock
Free

This app helps users track Rastafarian holidays and convert dates between the Rastafarian and Gregorian calendars. It also includes features for setting reminders, alarms, and a world clock.

Rastafarian holiday trackingGregorian to Rastafarian date conversionSet reminders and alarms
📊 Productivity
(39)
free
8
ZENTRA Field
ZENTRA Field
ZENTRA Field
View ZENTRA data on mobile
Free

Access and analyze your field data remotely with custom charts and real-time notifications. This app helps you monitor site conditions, track important trends, and reduce manual data processing.

Customizable field data chartsReal-time data visualizationOut-of-range data notifications
📊 Productivity
(2)
free
9
Dr. Greenhouse VPD Calculator
Dr. Greenhouse VPD Calculator
Dr. Greenhouse VPD Calculator
Calculate your VPD
Free

Easily calculate Vapor Pressure Deficit (VPD) for your grow room. Input temperature and humidity, and get a color-coded result indicating the climate's suitability for plant growth stages. Supports both Fahrenheit and Celsius.

VPD calculationTemperature unit selection (Fahrenheit/Celsius)Color-coded climate indicators
📊 Productivity
(6)
free
10
AROYA
AROYA
AROYA
by Addium Inc
Free

Access key insights and manage tasks for cultivation operations remotely or on-site. Monitor environmental conditions, track tasks, log observations, and receive real-time alerts to optimize crop growth and operational efficiency.

Facility and room dashboardsReal-time environment monitoringTask assignment and tracking
📊 Productivity
(28)
free