182+ iOS apps curated and reviewed
The best the kva calc apps on iPhone average 4.5★ across 182+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
Experience the award-winning calculator app for iPad and iPhone, offering a free basic and scientific calculator with an elegant design, simple usability, and beautiful interface. Calculate with ease and precision today!
Try CALC Smart Calculator ± for a versatile and reliable calculating tool. From basic to advanced functions, it's trusted by scientists, professionals, and students. See why it’s Apple-Featured in Utilities and Calculate categories now!
PCalc Lite is the ideal calculator app for scientists, engineers, students, and programmers offering RPN mode, multi-line display, unit conversions, constants, and more. Try it for free on your iPad and upgrade for additional features or themes. Also available on Apple Watch for on-the-go calculations.
This electrical calculator app allows users to convert and calculate kVA, kW, Amps, Volts, and Power Factor for single and three-phase systems, making it a handy tool for engineers working with UPS systems, generators, or transformers. Simply enter any two values to calculate the third and tap "Calculate" to get the result, and "Reset" to start a new calculation.
Get advanced math functions, statistics, matrices, and graphing capabilities with this all-in-one calculator app designed for high school and college students. Perfect for mastering pre-algebra, algebra, and more. Download now for a smarter way to calculate and visualize data.
Ohms Law Calc. is a comprehensive app featuring 62 electrical calculators and formulas for various calculations such as voltage, current, resistance, and power. Explore a wide range of tools including voltage drop, power factor, transformer calculator, and more!
A powerful calculator app for scientists, engineers, students, and programmers with features like RPN mode, multi-line display, unit conversions, constants, paper tape, undo/redo, and support for various calculation formats. Also available on Apple Watch for convenient wrist calculations. Try it now!
A versatile graphing calculator app with advanced scientific functions, graphing capabilities, unit conversion, constants, table generation, educational resources, and statistical tools. Perfect for students and professionals in math and science fields. Discover a world of mathematical possibilities in one convenient tool.
A scientific calculator app designed for engineers and students, offering features like formula display, quick editing, memory functions, and various calculation modes. Improve accuracy and efficiency with easy formula navigation and editing tools. Explore advanced functions for different number systems and mathematical operations.
Experience the ultimate tape calculator with a unique interface for all your calculation needs! From basic math to advanced scientific functions, currency and unit conversions, and 10 vibrant color themes - make calculations easier and more fun. Download now for your iPhone and iPad!
A free calculator app with HD graphics and multitasking support. Features general math operations, memory functions, thousands separators, and multilingual UI. Try it for quick and easy calculations on the go!
"Experience the most powerful RPN scientific calculator for iOS with a rich set of features including a full Computer Algebra System (CAS), access to HP-41 library modules, and extensive customization options. Enhance your scientific, engineering, and financial calculations with a virtual thermal printer, programmable functionality, and iCloud support. Download now for a comprehensive calculator experience."
The app is a comprehensive graphing calculator that features algebraic entry, math functions, graph plotting, statistics, matrix operations, unit conversion, BASIC programming, chemistry tools, geometry calculations, finance functions, and a built-in user guide for easy reference. It offers a colorful, fast, and fluid experience on iPhone and iPad with advanced features like touch input, high-resolution graph outputs, and fast computation speeds. Explore its diverse functionality to enhance your mathematical tasks.
This all-in-one calculator app is designed for everyday use, offering a range of features including unit and currency conversion, photo problem solving, scientific calculations, and handwriting recognition, as well as utilities for tracking date differences and calculating BMI. Get instant step-by-step solutions and smart assistance for numbers and daily tasks with this convenient and comprehensive tool.
A top-rated scientific calculator app on iOS devices offering advanced math functions with a user-friendly interface for users of all levels. Features include step-by-step solutions, math photo solving, and handwriting recognition. Enhance your calculations with this versatile tool.
Experience the power of the most advanced financial calculator for business professionals and students, offering a wide range of finance and science functions such as Time-Value-of-Money calculations, cash-flow analysis, bond pricing, statistics, and more. Features include memory storage, key click sounds, split screen mode, and compatibility with both BA II Plus™ and BA II Plus™ Professional calculator functions. Unlock your financial potential now!
This powerful calculator app handles complicated calculations with ease, supporting huge numbers and precise calculations up to 15 digits, with features like mathematical functions, calculation history, and swipe-accessible tools. Download now to experience a simple yet effective calculator that meets your calculation needs.
This is a quick and easy-to-use calculator app that allows you to perform complex calculations instantly, without the need to press equals buttons or navigate multiple steps. With a clean and minimalist design, it's perfect for everyday calculations, homework, and office tasks, and is available for free download.
An AI math calculator app that simplifies math problem-solving from pre-algebra to calculus, by providing step-by-step solutions. Say goodbye to math struggles and solve problems with confidence today!