Best Electronics Calculator Apps

234+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

EE ToolKit is the household name in electronics calculator, but it's far from the only option. We track 234+ alternatives and competitors on iOS β€” many free, many higher-rated than you'd expect.

Top Picks for Electronics Calculator

EE ToolKit#1

EE ToolKit by Thomas Gruber

Electronics Engineering
Editor's Choice
πŸ“š Education
4.7😊(1.4K ratings)
FreeIn-App Purchases
EE ToolKit screenshot 1
EE ToolKit screenshot 2
EE ToolKit screenshot 3
EE ToolKit screenshot 4
EE ToolKit screenshot 5
EE ToolKit screenshot 6

This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.

What We Love

  • πŸ‘ Useful tools and features
  • πŸš€ Comprehensive and informative
  • πŸ‘ Intuitive and easy to use
  • πŸ‘ Helpful for both beginners and professionals

Room to Improve

  • πŸ”’ Many features locked behind paywall
  • πŸ› Some bugs and glitches reported
  • πŸ” Limited free version functionality
Electronic Circuits Calculator#2

Electronic Circuits Calculator by ALG Software Lab SIA

Electronic Engineering Toolkit
Strong Contender
πŸ“š Education
0.0(0 ratings)
FreeAds
Electronic Circuits Calculator screenshot 1
Electronic Circuits Calculator screenshot 2
Electronic Circuits Calculator screenshot 3
Electronic Circuits Calculator screenshot 4
Electronic Circuits Calculator screenshot 5
Electronic Circuits Calculator screenshot 6

This comprehensive electronics toolkit offers over 130 interactive calculators, circuit tools, and guides. It's designed for users of all levels, from beginners to professionals, to assist with learning, prototyping, and quick calculations in electronics engineering.

Ohms Law Calc.#3

Ohms Law Calc. by V PUGAZHENTHI

Wire Size & Voltage Drop
Worth Considering
πŸ”§ Utilities
4.7😊(1.3K ratings)
FreeAdsIn-App Purchases
Ohms Law Calc. screenshot 1
Ohms Law Calc. screenshot 2
Ohms Law Calc. screenshot 3
Ohms Law Calc. screenshot 4
Ohms Law Calc. screenshot 5
Ohms Law Calc. screenshot 6

This app provides a comprehensive suite of electrical calculations, including Ohm's Law, voltage drop, wire sizing, and impedance. It also offers numerous converters for various electrical units and parameters, aiding in circuit design and analysis.

What We Love

  • πŸš€ Great value
  • πŸš€ Works perfectly
  • πŸš€ Fantastic app
  • πŸ‘ Best thing since sliced bread

Room to Improve

  • πŸ‘Ž Have to pay again for an app already purchased
  • πŸ‘Ž Not easy to use
  • πŸ› Paid but not unlocked, no response from developer

More Electronics Calculator apps to explore

4
Electronic Calculator: Amperio
Electronic Calculator: Amperio
Electronic Calculator: Amperio
Ohm Law,Resistor,Circuit Calc
Free
$3.99 | 100% OFF

This app provides instant, accurate calculations for electronics students and engineers. It includes tools for Ohm's Law, resistor color codes, voltage dividers, and unit conversions. Designed for ease of use and offline functionality, it offers a professional-grade experience without ads.

Ohm's Law CalculatorResistor Color Code DecoderVoltage Divider Calculator
πŸ”§ Utilities
(1)
paid
5
Electronics Engineer Helper
Electronics Engineer Helper
Electronics Engineer Helper
Calculators and references
Free

This app provides a comprehensive suite of calculators and reference tools for electronics enthusiasts and professionals. It includes features for component identification, circuit calculations, and electrical property analysis, aiding in both study and practical work.

Datasheet searchResistor color code calculatorElectronic schematic symbols
πŸ“Š Productivity
(427)
free with in-app purchases
6
DigiKey
DigiKey
DigiKey
Components and parts
Free

Access a vast inventory of electronic components on the go. Find, order, and track parts with features like visual search, barcode scanning, and offline datasheet access. Registered users get enhanced order management and shipping notifications.

Visual Search for parts by photoBrowse and filter product inventoryView detailed product specs, datasheets, photos, and videos
πŸ’Ό Business
(3.3K)
free with in-app purchases
7
Electronics Toolkit!
Electronics Toolkit!
Electronics Toolkit!
Dozens of tools in one app
Free

This app provides a comprehensive suite of tools and calculators for electronics engineers, students, and hobbyists. It includes numerous calculators for resistors, LEDs, capacitors, Ohm's law, and more, alongside useful tables and unit converters.

Resistor color code calculatorsLED resistor calculatorOhm's law calculator
πŸ“š Education
(507)
free with in-app purchases
8
Resistor Code Calculator
Resistor Code Calculator
Resistor Code Calculator
by Vivid Planet Software
Free

Easily determine the resistance value of electronic components using their color bands. This reference tool supports both 4 and 5-band resistors, making it ideal for makers, engineers, and students working with electronics projects.

Calculate resistor color codesSupports 4-band resistorsSupports 5-band resistors
πŸ” Reference
(27)
ad-supported
9
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
πŸ’° Finance
(23K)
free with in-app purchases
10
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations
πŸ”§ Utilities
(404K)
ad-supported
11
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.

Basic and scientific calculator modesOver 30 scientific operationsCustomizable appearance (iPad)
πŸ”§ Utilities
(60K)
free
12
Calculator #
Calculator #
Calculator #
Scientific Calculator
Free

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

Math Photos SolverHandwriting RecognitionAI Math Problem Solver
πŸ”§ Utilities
(36K)
free with in-app purchases
13
CalculatorΒ·
CalculatorΒ·
CalculatorΒ·
Big Basic Calculator
Free

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

Basic arithmetic operationsPercentage calculationsMultiple color schemes
πŸ”§ Utilities
(33K)
free with in-app purchases
14
PCalc
PCalc
PCalc
The Best Calculator
$9.99

A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.

Optional RPN modeMulti-line displayExtensive unit conversions
πŸ”§ Utilities
(758)
free with in-app purchases
15
Electronics docs & calcs
Electronics docs & calcs
Electronics docs & calcs
Electronics lab in your pocket
Free

This app serves as a pocket-sized electronics lab, offering a comprehensive reference for components and circuits. It simplifies complex calculations for filters, inductors, and various circuit configurations, aiding both engineers and hobbyists in their design processes.

Electronic component referenceElectronic circuit referenceFilter design calculators
πŸ“š Education
(13)
free
16
Calculator for iPadβ‚Š
Calculator for iPadβ‚Š
Calculator for iPadβ‚Š
Basic, Scientific, Plus Calc
Free

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Basic & Scientific CalculatorAdvanced Scientific FunctionsLive Currency Converter
πŸ”§ Utilities
(126K)
free with in-app purchases
17
Ohm's Law
Ohm's Law
Ohm's Law
by Creature Code Mobile, LLC
Free

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

Ohm's Law calculationsVoltage calculationCurrent calculation
πŸ”§ Utilities
(165)
free with in-app purchases
18
Scientific Calculator Plus 991
Scientific Calculator Plus 991
Scientific Calculator Plus 991
Designed for math calculator
Free

This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.

Natural display inputGraphing moduleFormula library
πŸ“š Education
(12K)
free with in-app purchases
19
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.

60+ free cute and colorful themesExclusive dynamic and special themesScientific & Standard calculator modes
πŸ”§ Utilities
(15K)
freemium
20
Calculator ∞
Calculator ∞
Calculator ∞
The Best Scientific Calculator
$5.99

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

Step-by-step solution hintsMath Photos SolverHandwriting Recognition
πŸ“š Education
(6.2K)
free with in-app purchases