Best Resistor Color Apps

233+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated August 2026

Looking for free resistor color apps? 17 of our 233+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Resistor Color Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Resistance Color CalculatorResistance Color CalculatorFree4.9★ (60)NoNoAug 2026
2Resistor - Color CodesResistor - Color CodesFree4.0★ (1)NoNoMay 2026
3Resistor Color CodesResistor Color CodesFree5.0★ (2)NoNoMay 2026
4Resistor color code calcResistor color code calcFree5.0★ (5)YesNoAug 2026
5Resistor Colors CalculatorResistor Colors Calculator$0.99NoNoMay 2026
6Resistor Color Band CalcResistor Color Band CalcFreeYesNoAug 2026
7Resistor color decoderResistor color decoderFreeYesNoMay 2026
8Resistor Code CalculatorResistor Code CalculatorFree3.6★ (27)YesNoJun 2026

Top Picks for Resistor Color

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.

Resistor Color Codes#3

Resistor Color Codes by Julian Musch

Reading resistors made easy!
Worth Considering
🔧 Utilities
5.0(2 ratings)
Free
Resistor Color Codes screenshot 1
Resistor Color Codes screenshot 2

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

More Resistor Color apps to explore

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

This utility helps you determine the resistance value of resistors by interpreting their colored bands. It supports 3, 4, 5, and 6 band resistors, visually displaying your selections and the calculated resistance and tolerance.

Calculates resistance for 3-6 band resistorsVisual band color selectionDisplays resistance and tolerance
🔧 Utilities
(5)
ad-supported
5
Resistor Colors Calculator
Resistor Colors Calculator
Resistor Colors Calculator
Results for 4, 5 or 6 bands
$0.99
🔧 Utilities
(0)
6
Resistor Color Band Calc
Resistor Color Band Calc
Resistor Color Band Calc
Resistor Color Band Calculator
Free
🔧 Utilities
(0)
7
Resistor color decoder
Resistor color decoder
Resistor color decoder
Resistance calculator
Free
🔧 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
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
10
Resistor Color Band Calculator
Resistor Color Band Calculator
Resistor Color Band Calculator
Resistance + Tolerance + Temp
Free

Easily calculate resistor resistance, tolerance, and temperature coefficients. Supports 4, 5, and 6 band codes with a user-friendly interface for electronics enthusiasts.

Calculate resistance, tolerance, and temperature coefficientsSupports 4, 5, and 6 band resistor codesIntuitive color band selection interface
🔧 Utilities
(22)
free
11
Resistor color codes calc
Resistor color codes calc
Resistor color codes calc
Fast resistor value finder
Free

Instantly decode resistor color bands to find resistance, tolerance, and TCR. Also calculates series/parallel resistance and voltage dividers. Supports E-series validation and multiple languages.

3- to 6-band color code supportResistance, tolerance, and TCR calculationValue to color code conversion
🔍 Reference
(0)
ad-supported
12
Resistor color barcode
Resistor color barcode
Resistor color barcode
Resitors value
Free
🔧 Utilities
(0)
13
Resistor, Capacitor color code
Resistor, Capacitor color code
Resistor, Capacitor color code
Electro Toolkit
$4.99
$5.99 | 17% OFF
🔧 Utilities
(0)
14
Resistor Color Code Calc.
Resistor Color Code Calc.
Resistor Color Code Calc.
Color Code & Ohm Calculator
Free

Instantly decode resistor color bands, calculate exact values, and convert SMD resistor markings. This app provides essential tools for electronics students, technicians, and hobbyists with a clean interface and fast processing.

Decode 3- to 6-band resistorsCalculate resistance valuesConvert SMD resistor codes
🔧 Utilities
(1)
free with in-app purchases
15
Resistor Calculator 4-Band
Resistor Calculator 4-Band
Resistor Calculator 4-Band
by Max Kievits
Free
🔧 Utilities
(0)
16
Resistor Color Code Calc +
Resistor Color Code Calc +
Resistor Color Code Calc +
Ohm's Law, LED & SMD Tool
Free
🔧 Utilities
(0)
17
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)
18
Color Ohm
Color Ohm
Color Ohm
Resistor Color Code Calculator
Free
🔧 Utilities
(0)
19
resistor code calculator+
resistor code calculator+
resistor code calculator+
by 佳 黄
Free
🔧 Utilities
(0)
20
Resistor Calculator & Ohms Law
Resistor Calculator & Ohms Law
Resistor Calculator & Ohms Law
Resistor Color Band Calculator
Free
🔧 Utilities
(0)

FAQ about Resistor Color

What are the best resistor color apps for iPhone?
Resistance Color Calculator tops our resistor color apps ranking as of August 2026, with a 4.9-star average from 60 App Store ratings, and it's free to download.
Yes — 17 of the top resistor color apps we rank are free to download, including Resistance Color Calculator and Resistor - Color Codes.
Resistance Color Calculator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 233+ resistor color 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.

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