NPKalc - Fertilizer Calculator app icon

Apps Like NPKalc - Fertilizer Calculator for iPhone and iPad

Calculate doses and units

Calculate requirements for granular and liquid types using various unit measurements. Input soil test results and desired nutrient levels. pplication rates for lawns, gardens, and crops. Export results for record-keeping.

by Barton Cone★ 4.39 ratingsUtilitiesFreeData updated 2026-09-06

NPKalc - Fertilizer Calculator screenshots

Ranked alternatives

Showing 121–140 of 1,000 ranked alternatives.

  1. Easy Temperature Converter Free app icon

    Easy Temperature Converter Free

    MaoWare Corporation

    Convert units instantly

    Convert temperatures between Celsius, Fahrenheit, Kelvin, Delisle, Newton, Rankine, Réaumur, and Rømer. Enter a value and select the unit to convert from. Display results in the desired unit.

    ★ 4.696 ratingsUtilitiesFreeData updated 2026-09-08
  2. Calculator XL app icon

    Calculator XL

    Gero Mazza

    Calculate, convert, and track expenses

    Perform basic and advanced calculations with large, illuminated buttons. Use the scientific for 30 functions. Convert units, calculate loans, and determine tips. Includes standard, scientific, unit converter, loan, and tip calculators.

    ★ 4.7151 ratingsProductivity$9.99Data updated 2026-09-08
  3. HiPER Scientific Calculator app icon

    HiPER Scientific Calculator

    Jindrich Houska

    Calculate and solve complex equations

    With symbolic algebra, equation solving, and calculus functions. Supports fractions, repeating decimals, and high-precision numbers. Displays results as simplified expressions or numerical values.

    ★ 4.6182 ratingsUtilitiesFreeData updated 2026-09-06
  1. RedX Stairs - 3D Calculator app icon

    RedX Stairs - 3D Calculator

    RedX Technology Inc

    Measure with 3D precision

    Calculate stair dimensions for Straight, L-Shaped, U-Shaped, Spiral, Winder, and Corner Deck configurations. Visualize designs in 3D. Measure steps, risers, and tread depths. Export measurements and save projects.

    ★ 4.5362 ratingsUtilitiesFreeData updated 2026-09-06
  2. Calc Pro - The Top Calculator app icon

    Calc Pro - The Top Calculator

    Panoramic Software Inc.

    Calculate and manage your finances

    Perform complex calculations using ten built-in calculators. Access ten financial worksheets for budgeting, loans, and investments. Input formulas, view results, and save calculations. Export data as PDF or text. Switch between light and dark modes.

    ★ 4.7358 ratingsUtilities$7.99Data updated 2026-09-08
  3. Pip Calculator - Pip Value app icon

    Pip Calculator - Pip Value

    Phan Nhat Đang

    Calculate pips for Forex trades

    Calculate pip values for Forex currency pairs. Input trade details to determine pip worth. Assist with risk management and trade decisions. Provide accurate calculations for lot sizes and currency pairs.

    ★ 4.7118 ratingsFinanceFreeData updated 2026-09-06
  4. Fields Area Measurement app icon

    Fields Area Measurement

    Bhavik Savaliya

    Measure areas and track routes

    Measure areas and distances on maps by placing points and calculating the between them. Save and edit measurements. Switch between different units for distance and . Calculate total of a route or individual segments.

    ★ 4.4464 ratingsProductivityFreeData updated 2026-09-11
  5. Calculate Hours Worked app icon

    Calculate Hours Worked

    Review And Judge LLC

    And track pay rate

    Log in and log out times to total . Enter hourly pay rate to view total amount due. Email or download results for record-keeping. Select rate mode to input different rates and comments for multiple jobs.

    ★ 4.2232 ratingsUtilitiesFreeData updated 2026-09-08
  6. Soil Test Pro app icon

    Soil Test Pro

    TapLogic, LLC

    Soil sampling made easier for growers.

    The app simplifies soil sampling for growers and service providers, offering lab results, fertilizer recommendations, and controller files. It provides unlimited access to specialists, aerial imagery, and a complete soil testing history.

    ★ 3.714 ratingsUtilitiesFreeData updated 2026-09-24
  7. Soil Calculator Plus app icon

    Soil Calculator Plus

    Calc Hub, LLC

    Calculate volume for any shape

    Calculate , topsoil, dirt, or landscaping material needed for projects. Input dimensions for rectangular, circular, or custom areas. Enter measurements in inches, feet, yards, centimeters, or meters.

    ★ 4.9842 ratingsUtilitiesFreeData updated 2026-09-24
  8. Duct Calculator app icon

    Duct Calculator

    Pheinex, LLC

    Calculate size and performance

    Calculate size for round or rectangular ductwork. Adjust airflow, diameter, width, or height using sliders. Enter values directly for precise measurements. Lock friction calculations for accurate results.

    ★ 4.5189 ratingsUtilities$19.99Data updated 2026-09-10
  9. Electronics Circuit Calculator app icon

    Electronics Circuit Calculator

    Mustafa Mohammed

    Calculate circuits, convert units, test experiments

    Solve electrical problems by calculating voltage, current, and resistance. Input values to determine unknown variables. Perform unit conversions and conduct experiments. Store and retrieve calculation results.

    ★ 4.464 ratingsEducationFreeData updated 2026-09-09
  10. Calculator Plus - PRO app icon

    Calculator Plus - PRO

    DigitAlchemy LLC

    Calculate, edit, and track numbers

    Perform calculations with basic arithmetic, fractions, and advanced functions. Store calculation history for review. Switch between light and dark modes. Use HD display for clear results. Adjust layout for easier input.

    ★ 4.9695 ratingsUtilities$3.99Data updated 2026-09-09
  11. Pip Calculator app icon

    Pip Calculator

    Alpinetic

    Calculate pip value for trades

    Calculate pip values for forex trades by entering account currency, currency pair, and trade size. Display pip worth in real-time. Provide risk warnings for forex trading.

    ★ 4.6406 ratingsFinanceFreeData updated 2026-09-15
  12. Profit & Margin Calculator app icon

    Profit & Margin Calculator

    Oval Software Oy

    Calculate profits and margins

    Calculate annual profits by inputting revenue and expenses. Determine sales margins with customizable inputs. Track trends over time. Export calculation results for record-keeping. Set reminders for reviews.

    ★ 5.053 ratingsFinance$3.99Data updated 2026-09-22
  13. Dilution Calculator app icon

    Dilution Calculator

    Samuel Blackburn

    Calculate ratios instantly

    Calculate ratios by entering the desired ratio and bottle size. Determine the exact amounts of water and solution needed. Supports litres and millimetres with future unit additions. Share results or provide feedback through in- options.

    ★ 4.7156 ratingsUtilitiesFreeData updated 2026-09-25
  14. Concrete Calculator Elite app icon

    Concrete Calculator Elite

    Cyberprodigy LLC

    Calculate volumes and quantities

    Helps estimate materials for various shapes. Users input dimensions to calculate volume and quantity. Features include slab, column, and post calculations. Saves results for future reference.

    ★ 4.9125 ratingsUtilities$6.99Data updated 2026-09-08
  15. AirsoftCalculator app icon

    AirsoftCalculator

    Roland Lariotte

    Calculate pellet energy in joules

    Calculate the energy of airsoft pellets in joules to ensure compliance with legal limits. Input velocity and weight to determine power levels. Set custom thresholds for safe gameplay. Export results for record-keeping.

    ★ 3.718 ratingsUtilitiesFreeData updated 2026-09-19

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.