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
Alarm offers customizable sounds for different scenarios including alarm clock, car alarm, fire alarm, and smoke alarm. Users can tap to play sounds and interact with a moving gravity-based button. No internet required for functionality.
Calculate humidity properties using dry-bulb, wet-bulb, and dew point temperatures. Input values to determine relative humidity, vapor pressure, and specific humidity. Display results in a interface with precise Wexler–Hyland formulation.
Displays calculations in a scrollable format for easy review. Users can track calculation history, perform basic arithmetic, and use a scientific mode for advanced functions. Input and results are visible simultaneously for accuracy.
Calculate pay and total earnings by adding regular and hours. Input hourly rates and hours worked. Display total pay and break down regular and amounts. Save and export results.
Calculate size for DC voltage systems to prevent overheating and fires. Input parameters to determine appropriate gauge. Save, edit, sum, email, and export run data. Include a wizard for guided calculations.
The provides 74 calculators for various tasks. Users can perform financial calculations, scientific computations, and unit conversions. Features include loan calculations, equation solving, and unit conversion tools.
Calculate taxes with a dedicated tax button and grand total function. Display equations and results simultaneously on a double line interface. Round to two decimal places and correct mistakes easily. Email or copy tape entries for record keeping.
Calculate trade risk in percentage and pips. Set stop loss values based on position size and exchange rate. Input trade details to determine potential losses. Export calculations for record-keeping.
Calculate sizes and compare rim compatibility. Input measurements to determine proper fit. Display results in a today widget for quick reference. Track step-by-step calculations for accuracy.
Calculate using functions including sin, cos, tan, and their inverses. Convert units with 136 converters. Access daily updated currency exchange rates. Perform algebraic calculations with 800+ formulas. Switch between degrees, radians, and grads.
Calculate monthly payments based on loan term or desired amount. monthly schedule. Input loan details to determine amounts. View breakdowns and timelines. Adjust terms to explore different options.
Calculate GST on sales or purchases by entering the transaction amount and GST rate. Perform basic mathematical operations. View calculated results instantly.
Perform complex mathematical calculations including trigonometric functions, logarithms, and exponentials. Switch between radians and gradients. Edit equations and save results for future reference.
Calculate depth of field with real-time updates and advanced algorithms. Input focal length, aperture, and distance to determine focus range. Account for diffraction effects. Export results and share calculations.
The app provides 44 thermodynamics and heat-transfer calculators, along with reference tables. It allows users to solve for any variable and switch between SI and USCS units instantly.
Calculate angles, solve triangles, and compute trigonometric
Calculate angles, side lengths, and hypotenuse of triangles. Determine arc radius, arc length, chord length, and chord height. Solve trigonometric problems with precise formulas and tools. Input measurements to get accurate geometric results.