Best Resistor Identifier Apps

247+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated August 2026

From beginner-friendly picks to power-user tools, our resistor identifier list covers 247+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.

Compare top Resistor Identifier Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Resistance Color CalculatorResistance Color CalculatorFree4.9★ (60)NoNoAug 2026
2ID ResistorsID ResistorsFree4.9★ (27)NoNoJul 2026
3Resistor AI CalculatorResistor AI CalculatorFree3.6★ (5)YesNoMay 2026
4Electronics Toolkit!Electronics Toolkit!Free4.3★ (556)YesYesAug 2026
5Resistor - Color CodesResistor - Color CodesFree4.0★ (1)NoNoMay 2026
6Resistor Calculator 4-BandResistor Calculator 4-BandFreeNoNoMay 2026
7Resistor, Capacitor color codeResistor, Capacitor color code$4.99 was $5.99NoNoJul 2026
8Resistor Code CalculatorResistor Code CalculatorFree3.6★ (27)YesNoJun 2026

Top Picks for Resistor Identifier

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

Easily determine the resistance value of electronic components. Simply select the number of color bands on your resistor and input the colors one by one to instantly get the resistance and tolerance. This tool simplifies a common electronics task.

ID Resistors#2

ID Resistors by Marc Rummel

Identify resistor values.
Strong Contender
📚 Education
4.9(27 ratings)
Free
ID Resistors screenshot 1
ID Resistors screenshot 2
ID Resistors screenshot 3

Easily identify the values of through-hole and SMD resistors. Input a resistor value to find its code, or enter the code to determine its value. Supports English, French, German, and Spanish.

More Resistor Identifier apps to explore

4
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
📚 Education
(556)
free with in-app purchases
5
Resistor - Color Codes
Resistor - Color Codes
Resistor - Color Codes
Determine resistor values
Free

Quickly identify the value of resistors using their color bands. This utility tool simplifies electronics calculations for hobbyists and professionals alike.

Determine resistor valuesColor code identificationElectronics utility
🔧 Utilities
(1)
free
6
Resistor Calculator 4-Band
Resistor Calculator 4-Band
Resistor Calculator 4-Band
by Max Kievits
Free
🔧 Utilities
(0)
7
Resistor, Capacitor color code
Resistor, Capacitor color code
Resistor, Capacitor color code
Electro Toolkit
$4.99
$5.99 | 17% OFF
🔧 Utilities
(0)
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
🔍 Reference
(27)
ad-supported
9
resistor code calculator+
resistor code calculator+
resistor code calculator+
by 佳 黄
Free
🔧 Utilities
(0)
10
Resistor color codes calc
Resistor color codes calc
Resistor color codes calc
Fast resistor value finder
Free
🔍 Reference
(0)
11
LED Resistor Calculator & SMD
LED Resistor Calculator & SMD
LED Resistor Calculator & SMD
LED & SMD Value Calculator
Free
🔧 Utilities
(0)
12
Resistor Color Codes
Resistor Color Codes
Resistor Color Codes
Reading resistors made easy!
Free

Easily determine resistor values without a multimeter. Simply spin the color wheels to match your resistor. This tool simplifies the process of identifying resistance.

Intuitive color wheel interfaceAccurate resistance value calculationNo multimeter required
🔧 Utilities
(2)
free
13
Resistor Value Checker
Resistor Value Checker
Resistor Value Checker
Ohm Resistor Bands Calculator
Free
🔧 Utilities
(0)
14
HTR Resistor Finder
HTR Resistor Finder
HTR Resistor Finder
by Ravishankar Rajagopalan
Free
💼 Business
(0)
15
Resistor Calculator Lite
Resistor Calculator Lite
Resistor Calculator Lite
Easy to use calculator
Free
🔧 Utilities
(0)
16
AI Resistor Color Code Scanner
AI Resistor Color Code Scanner
AI Resistor Color Code Scanner
Ohms calculator by camera
Free

Instantly identify and calculate resistor values using your iPhone camera. This tool eliminates the need for manual color band reading and charts, offering quick results for engineers, hobbyists, and students. Save your scans and organize them into projects for efficient workflow.

Instant camera scanningSave and organize scansInteractive color band editing
🔧 Utilities
(1)
free with in-app purchases
17
Resistor Color Band Calc
Resistor Color Band Calc
Resistor Color Band Calc
Resistor Color Band Calculator
Free
🔧 Utilities
(0)
18
Resistor Color Code Calc Lite
Resistor Color Code Calc Lite
Resistor Color Code Calc Lite
Resistor Color Code Calculator
$2.99
$6.99 | 57% OFF
🔧 Utilities
(0)
19
Resistors
Resistors
Resistors
by Andre D Labbe
Free
🔧 Utilities
(0)
20
Gluon Resistor Calculator
Gluon Resistor Calculator
Gluon Resistor Calculator
by Gluon Software BVBA
Free
📚 Education
(0)

FAQ about Resistor Identifier

What are the best resistor identifier apps for iPhone?
Resistance Color Calculator tops our resistor identifier apps ranking as of August 2026, with a 4.9-star average from 60 App Store ratings, and it's free to download.
Yes — 18 of the top resistor identifier apps we rank are free to download, including Resistance Color Calculator and ID Resistors.
Resistance Color Calculator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 247+ resistor identifier apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app helps you determine the resistance value of electronic resistors. You input the colors of the bands on the resistor, and it calculates the resistance value and tolerance for you.
First, select the number of rings your resistor has from the menu. Then, hold the resistor with the larger gap between rings on the right. Finally, select the colors of your resistor's bands one after another in the app to see the calculated resistance and tolerance.