Best Resistor Apps

178+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

With an average user rating of 4.6★, the resistor category is one of the App Store's strongest. Browse all 178+ apps we track, sorted so the most loved ones surface first.

Top Picks for Resistor

Resistance Color Calculator#1

Resistance Color Calculator by Fabian Schiller

Editor's Choice
🔧 Utilities
4.9(60 ratings)
Free
Resistance Color Calculator screenshot 1
Resistance Color Calculator screenshot 2
Resistance Color Calculator screenshot 3
Resistance Color Calculator screenshot 4

The Resistance Color Calculator is a user-friendly tool that simplifies the process of determining the resistance value of a resistor. Users can easily select the number of rings on their resistor and input the color codes, and the application will instantly provide the resistance value, tolerance, and other relevant details. This app is designed to make the task of identifying resistor values quick and effortless.

Electronics Toolkit!#2

Electronics Toolkit! by Davey Hollenberg

Dozens of tools in one app
Strong Contender
📚 Education
4.3😐(507 ratings)
FreeAdsIn-App Purchases
Electronics Toolkit! screenshot 1
Electronics Toolkit! screenshot 2
Electronics Toolkit! screenshot 3
Electronics Toolkit! screenshot 4
Electronics Toolkit! screenshot 5

Discover an all-in-one Electronics Toolkit with a variety of calculators, converters, and reference tables tailored for electronic engineers, students, and hobbyists. Access essential tools like resistor color code calculators, logic gate truth tables, 555 timer calculators, and more to assist in electronic projects and learning.

What We Love

  • 📚 Comprehensive electronics reference material
  • 👍 Useful for beginners and students
  • 🎯 Good basic calculators for resistance and capacitance
  • 📌 Helpful pinout diagrams for Arduino and Raspberry Pi

Room to Improve

  • 🎨 Poor color scheme with readability issues
  • ⚪ White text on white background
  • 🔒 Excessive paywall blocking most features
Resistor Code Calculator#3

Resistor Code Calculator by Vivid Planet Software

Worth Considering
🔍 Reference
3.6(27 ratings)
FreeAds
Resistor Code Calculator screenshot 1
Resistor Code Calculator screenshot 2

This handy reference app calculates resistor color codes, supporting 4 and 5-band resistors, and is useful for makers, engineers, students, and electronics enthusiasts. Download the app to easily identify resistance values using the industry standard color-code.

More Resistor apps to explore

4
Resistor color code calc
Resistor color code calc
Resistor color code calc
Resistor color code Calculator
Free

This application helps determine the resistance value of resistors based on their colored bands, supporting 3, 4, 5, and 6 band resistors. Simply select the number of bands and click on the color chart to get the corresponding resistance value and tolerance, making it easy to configure your electronics.

🔧 Utilities
(5)
5
Resistor Brain
Resistor Brain
Resistor Brain
Look at resistors in a new way
Free

This innovative app changes the way you view resistors by using a camera and neural network to detect and decode their resistance from color stripes. Join the fun and discover a new way to interact with resistors, with a special feature to visualize the neural network's processing stages.

🔍 Reference
(2)
6
Resistor-Converter
Resistor-Converter
Resistor-Converter
Color Resistor, SMD Resistor
Free

This application allows users to easily convert resistor colors to resistance values and vice versa, supporting 4, 5, or 6 ring resistors, as well as SMD resistors. Simply select or enter the relevant information to get the calculated resistance value, try it now!

🔧 Utilities
(16)
7
Resistor - Color Codes
Resistor - Color Codes
Resistor - Color Codes
Determine resistor values
Free

Easily determine resistor values using a color code system. Look up resistor values quickly and efficiently with this handy tool.

🔧 Utilities
(1)
8
ID Resistors
ID Resistors
ID Resistors
Identify resistor values.
Free

This application helps identify resistor values, supporting both through-hole and SMD resistors, by allowing users to enter a value and get the resistor code or vice versa. Try it now to easily convert between resistor values and codes in English, French, German, or Spanish.

📚 Education
(27)
9
Resistor Color Band Calculator
Resistor Color Band Calculator
Resistor Color Band Calculator
Resistance + Tolerance + Temp
Free

This tool helps engineers, hobbyists, and students calculate the precise resistance, tolerance, and temperature coefficients of resistors by selecting color bands from an intuitive interface. With its comprehensive color band chart and user-friendly design, it streamlines resistance calculations, making it an essential asset for anyone working with resistors.

🔧 Utilities
(22)
10
Resistor : electronics tools
Resistor : electronics tools
Resistor : electronics tools
Everything resistor
Free
📊 Productivity
(0)
11
EE ToolKit
EE ToolKit
EE ToolKit
Electronics Engineering
Free

Discover the ultimate Electronics Engineering ToolKit, recommended by users as the best in the App Store! Packed with over 160 electronic applications, color code tools, frequency generators, and more. Don't miss out on this essential app for engineers, students, and hobbyists!

📚 Education
(1.4K)
12
SMD decoder
SMD decoder
SMD decoder
by Arkadiusz Fryszkowski
Free
🔧 Utilities
(1)
13
Electronics Engineer Helper
Electronics Engineer Helper
Electronics Engineer Helper
Calculators and references
Free

A must-have app for electronics enthusiasts with calculators and references covering a wide range of topics including Ohm's law, capacitor codes, resistor color marking, and much more. Join over 100,000 users in simplifying electronics work or studies today. Unlock even more tools with the PRO version for enhanced functionality. Check it out now!

📊 Productivity
(427)
14
SJ Resistor Calculator
SJ Resistor Calculator
SJ Resistor Calculator
Resistor calculations
Free
🔧 Utilities
(1)
15
Resistor Color Code Calc.
Resistor Color Code Calc.
Resistor Color Code Calc.
Color Code & Ohm Calculator
Free
🔧 Utilities
(1)
16
Resistor color barcode
Resistor color barcode
Resistor color barcode
Resitors value
Free
🔧 Utilities
(0)
17
Resistor Code Calculators
Resistor Code Calculators
Resistor Code Calculators
by Kanta Kikubo
Free
🔧 Utilities
(0)
18
Resistor Color Codes
Resistor Color Codes
Resistor Color Codes
Reading resistors made easy!
Free

This application helps users easily determine resistance values of resistors by intuitively selecting colors from virtual wheels, eliminating the need for a multimeter. Try it out and take the uncertainty out of reading resistors!

🔧 Utilities
(2)
19
resistor code calculator+
resistor code calculator+
resistor code calculator+
by 佳 黄
Free
🔧 Utilities
(0)
20
Resistor Tools
Resistor Tools
Resistor Tools
by Siu Yuen Ho
Free

This app is a collection of resistor calculators for hobbyists and electronic engineers, offering various tools to calculate resistance, voltage divider ratios, and amplifier gains. With this app, users can perform calculations and save combination values, making it a handy tool for electronic design and development.

🔧 Utilities
(10)

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