Best Smd Resistor Apps

170+ iOS apps curated and reviewed

4.6 avg rating
17 free apps
Updated June 2026

Out of 170+ smd resistor apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Smd Resistor

Resistor-Converter#2

Resistor-Converter by Gerhard Lentschik

Color Resistor, SMD Resistor
Strong Contender
🔧 Utilities
4.9(16 ratings)
Free
Resistor-Converter screenshot 1
Resistor-Converter screenshot 2
Resistor-Converter screenshot 3
Resistor-Converter screenshot 4
Resistor-Converter screenshot 5
Resistor-Converter screenshot 6

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!

Resistor Tools#3

Resistor Tools by Siu Yuen Ho

Worth Considering
🔧 Utilities
5.0(10 ratings)
FreeIn-App Purchases
Resistor Tools screenshot 1
Resistor Tools screenshot 2
Resistor Tools screenshot 3
Resistor Tools screenshot 4
Resistor Tools screenshot 5
Resistor Tools screenshot 6

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.

More Smd Resistor apps to explore

4
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)
5
Electronic Component Codes
Electronic Component Codes
Electronic Component Codes
SMD & Color Code Guide
Free
🔧 Utilities
(0)
6
Resistor : electronics tools
Resistor : electronics tools
Resistor : electronics tools
Everything resistor
Free
📊 Productivity
(0)
7
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)
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 Code Calculator
Resistor Code Calculator
Resistor Code Calculator
by Vivid Planet Software
Free

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.

🔍 Reference
(27)
10
Read A Res
Read A Res
Read A Res
Resistance Reader
Free

This application allows users to easily read and convert resistance values by setting color codes or entering SMD values. It's a simple tool that does the calculations for you, providing a hassle-free experience.

🔧 Utilities
(33)
11
Electronics Toolkit!
Electronics Toolkit!
Electronics Toolkit!
Dozens of tools in one app
Free

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.

📚 Education
(507)
12
Resistor Calculator 4-Band
Resistor Calculator 4-Band
Resistor Calculator 4-Band
by Max Kievits
Free
🔧 Utilities
(0)
13
SJ Resistor Calculator
SJ Resistor Calculator
SJ Resistor Calculator
Resistor calculations
Free
🔧 Utilities
(1)
14
LED Resistor Calculator Plus
LED Resistor Calculator Plus
LED Resistor Calculator Plus
Resistor Values for LED
$2.99

This application helps you determine the series resistor value needed to safely connect light-emitting diodes (LEDs) to a power source, preventing damage from excessive current. Simply input the required values, and the app calculates the resistor value, power dissipation, and recommended wattage for your LED connections.

🔧 Utilities
(6)
15
HTR Resistor Finder
HTR Resistor Finder
HTR Resistor Finder
by Ravishankar Rajagopalan
Free
💼 Business
(0)
16
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistor bands, Watt & Ohm Law
Free

This electronics utility app helps users quickly calculate resistance using standard resistor color codes and includes a built-in Ohm's Law and Watt's Law calculator for voltage, current, resistance, and power calculations. Download the app to simplify resistor identification and circuit calculations, saving time and reducing errors.

🔧 Utilities
(10)
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
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)
19
Resistor Plus
Resistor Plus
Resistor Plus
Resistor Calculator
$2.99

This resistor calculator app helps determine resistor values in ohms and their tolerance based on color-coded bands, making it easy to select and calculate resistor colors. Simply tap and select color values, and the result is displayed immediately, allowing you to copy or take a screenshot for future reference.

📚 Education
(0)
20
Resistor AI Calculator
Resistor AI Calculator
Resistor AI Calculator
by Daichi Takigawa
Free

This innovative tool uses your smartphone's camera to detect and calculate the resistance value of carbon film resistors in real-time. Simply hold your phone over the resistor to get an instant reading, supporting 4-line brown resistors with a ± 5% margin of error.

🔧 Utilities
(5)