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 661–680 of 1,000 ranked alternatives.

  1. Calculator - Currency - Unit app icon

    Calculator - Currency - Unit

    hua-shan cheng

    Calculate, convert, and track values

    Scientific with and conversion capabilities. Perform complex calculations, convert currencies, and switch units. Review and reuse calculation history. Use landscape mode for efficient input and history viewing.

    ★ 5.04 ratingsUtilitiesFreeData updated 2026-09-06
  2. Fluid Mechanics Calculator app icon

    Fluid Mechanics Calculator

    loay setrak

    Calculate parameters

    Calculate parameters using 90 tools. Input values to determine dry bulk density, specific gravity, flow rate, head loss, pressure, and velocity. Convert units and export results. Sync data across devices.

    ★ 0.00 ratingsEducation$0.99Data updated 2026-09-13
  1. Sigma Calculator app icon

    Sigma Calculator

    Fayez Tayyar

    Calculate, name, and organize numbers

    Calculate and organize numerical data with customizable named entries. Perform multiline calculations, edit lines, and assign currency or units. Automatically sum entries and hide the keyboard for a list view.

    ★ 5.03 ratingsUtilitiesFreeData updated 2026-09-06
  2. Walter Machining Calculator app icon

    Walter Machining Calculator

    Walter AG

    Calculate time, power, and torque

    Calculate time, power, torque, cutting force, metal removal rate, and chip thickness for operations like milling, drilling, turning, and tapping. Select materials and input parameters for accurate results.

    ★ 3.05 ratingsProductivityFreeData updated 2026-09-08
  3. BuildersCalcsPro app icon

    BuildersCalcsPro

    Robert Thompson

    Calculate, estimate, and plan projects

    Calculate concrete quantities for floor slabs and foundations including aggregate, sand, and cement. Estimate materials for DIY projects and building trades. Include a VAT calculator and a brain-training game.

    ★ 1.45 ratingsUtilities$2.99Data updated 2026-09-08
  4. Card Centering Calculator ++ app icon

    Card Centering Calculator ++

    Halis Bilal Kara

    Calculate for grading accuracy

    Calculate measurements for grading purposes. Input dimensions and alignment data to determine optimal . Track grades, storage conditions, and collection progress. Export and share grading reports.

    ★ 1.52 ratingsUtilitiesFreeData updated 2026-09-06
  5. Vibra Test app icon

    Vibra Test

    Motionics, LLC

    Vibration severity test for machinery.

    The app provides vibration severity testing for rotating machinery according to ISO 10816-03. Users input machine power, foundation type, and RMS vibration velocity to determine the operating condition, displayed in color-coded zones.

    ★ 3.52 ratingsProductivityFreeData updated 2026-09-22
  6. Paces: Running pace calculator app icon

    Paces: Running pace calculator

    Austin Louden

    Calculate race and finish time

    Calculate times based on entered . Adjust by +/- 1 minute using bottom buttons. Change race distance by tapping the top bar. Input desired and distance to estimate total time.

    ★ 5.05 ratingsHealth & FitnessFreeData updated 2026-09-18
  7. iRotorBalance app icon

    iRotorBalance

    Motionics, LLC

    Calculator for balancing rotating machinery.

    The app calculates balancing weights and angular positions for rotating machinery. It offers single-plane and two-plane balancing techniques, angular mass distribution calculation, and permissible residual unbalance determination.

    ★ 3.02 ratingsUtilities$4.99Data updated 2026-09-18
  8. Compressed Air Calc by ALMiG app icon

    Compressed Air Calc by ALMiG

    ALMiG Kompressoren GmbH

    Calculate pressure drop and convert units

    Optimize air systems with unit conversions for pressure, volume, and temperature. Calculate pressure drop, condensate formation, and standard cubic meters according to DIN 1343 and ISO 2533. Determine optimal receiver size and system efficiency.

    ★ 4.01 ratingsProductivityFreeData updated 2026-09-10
  9. Asphalt Calculator One app icon

    Asphalt Calculator One

    Yevhen Kniaziuk

    Calculate volume and tonnage

    Determines cubic yards and hot mix tonnage. Input length, width, and thickness in feet or meters. Choose units for imperial or metric. Calculate results with a single tap.

    ★ 4.04 ratingsUtilitiesFreeData updated 2026-09-16
  10. Safe Entry Mobile app icon

    Safe Entry Mobile

    ANSYNC INC

    Refill sanitizer, match decor, stay clean

    A hand sanitizer solution that complements decor with customizable designs. Refillable liquid ensures consistent supply. Tracks usage and alerts when low. Syncs with smart home systems for automated dispensing.

    ★ 5.01 ratingsUtilitiesFreeData updated 2026-09-06

How we rank alternatives

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