Best Resistor Tools Apps

193+ iOS apps curated and reviewed

4.5 avg rating
15 free apps
Updated June 2026

The best resistor tools apps on iPhone average 4.5★ across 193+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.

Top Picks for Resistor Tools

Resistor Tools#2

Resistor Tools by Siu Yuen Ho

Strong Contender
🔧 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 utility app provides a suite of tools for calculating and determining resistor values. It assists hobbyists and engineers with series, parallel, and voltage divider calculations, as well as inverting amplifier gain.

More Resistor Tools apps to explore

4
Harbor Freight Tools
Harbor Freight Tools
Harbor Freight Tools
Harbor Freight Coupons
Free

Discover the latest coupons, instant savings, and exclusive deals for members. Browse tools, check local stock, and create wish lists. Scan barcodes in-store for more product information.

Latest coupons and instant savingsInside Track Club member dealsBrowse tools and watch videos
🛍️ Shopping
(216K)
free
5
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
(507)
free with in-app purchases
6
Resistor Tools Pro
Resistor Tools Pro
Resistor Tools Pro
by Siu Yuen Ho
$0.99

This utility app offers a suite of tools for calculating and finding resistor combinations. It's designed for electronics enthusiasts and professionals needing to determine series, parallel, and voltage divider configurations. Save and share your calculations easily.

Calculate series/parallel resistanceFind resistor combinations for desired resistanceVoltage divider ratio and value calculation
🔧 Utilities
(1)
paid
7
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
8
Electrical engineering tools
Electrical engineering tools
Electrical engineering tools
Electrical calculation tools
Free
📊 Productivity
(0)
9
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistance Calculator: In Ohms
Resistor bands, Watt & Ohm Law
Free

Instantly calculate resistor resistance values from color codes (3-6 bands). Includes Ohm's Law and Watt's Law calculators for voltage, current, and power. Ideal for electronics enthusiasts and professionals.

Decode resistor color codesSupports 3-6 band resistorsOhm's Law calculator
🔧 Utilities
(10)
free with in-app purchases
10
EE ToolKit
EE ToolKit
EE ToolKit
Electronics Engineering
Free

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.

Over 160 electronic applicationsMulti-functional keyboardColor code and SMD code tools
📚 Education
(1.4K)
free with in-app purchases
11
Resistor AI Calculator
Resistor AI Calculator
Resistor AI Calculator
by Daichi Takigawa
Free

Point your phone's camera at a resistor to instantly identify its value. Currently supports 4-band carbon film resistors with a 5% tolerance.

Real-time resistor detectionAutomatic resistance calculationSupports 4-band carbon film resistors
🔧 Utilities
(5)
ad-supported
12
Toolbox™
Toolbox™
Toolbox™
iMetalBox - 12 handy tools
$1.99

This app provides a collection of 12 essential utility tools for your iPhone, including a flashlight, magnifier, unit converter, and more. It offers a versatile and functional solution for everyday tasks and measurements.

Adjustable flashlight with compassMagnifying glass with lightUnit converter with currency exchange
🔧 Utilities
(4.2K)
paid
13
Electrical Tools & Reference
Electrical Tools & Reference
Electrical Tools & Reference
Electrician Training Basics
Free
📊 Productivity
(0)
14
RYOBI
RYOBI
RYOBI
All-in-one tool management app
Free

Manage, monitor, and maximize your tools with this app. Register new purchases, track connected tools, and explore the product catalog. Access manuals, warranty information, and find nearby retailers.

Product registration with OCR and barcode scanningMonitor and manage connected toolsView tool status and metrics
🔧 Utilities
(13K)
free with in-app purchases
15
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)
16
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
17
resistor code calculator+
resistor code calculator+
resistor code calculator+
by 佳 黄
Free
🔧 Utilities
(0)
18
Toolbox PRO: Smart Meter Tools
Toolbox PRO: Smart Meter Tools
Toolbox PRO: Smart Meter Tools
Best Measuring Tool Box App
$3.99

Transform your device into a versatile measuring toolkit. It offers a comprehensive suite of 13+ tools including a barometer, altimeter, compass, metronome, stopwatch, timer, and various levels for diverse applications.

Barometer for atmospheric pressureAltimeter for elevation above sea levelCompass for navigation
🔧 Utilities
(3.5K)
paid
19
Milwaukee® ONE-KEY™
Milwaukee® ONE-KEY™
Milwaukee® ONE-KEY™
by Milwaukee Electric Tool, Corp.
Free

This digital platform helps manage tools and equipment by providing an inventory program and tracking capabilities. It allows users to log purchase information, set service reminders, and track tool locations to prevent theft and tampering.

Digital tool inventoryTrack tool locationService reminders
📊 Productivity
(7.7K)
free with in-app purchases
20
Smart Tools - All In One Box
Smart Tools - All In One Box
Smart Tools - All In One Box
31 tools and gauges in one box
Free

This comprehensive utility app provides 31 essential tools and gauges, leveraging your device's sensors. It includes measurement tools, a light, a magnifier, and various sensors for construction, carpentry, and everyday use.

31 carpenter, construction, and gauge toolsBubble level and laser levelStud finder and dB meter
🔧 Utilities
(314)
free with in-app purchases

Related searches