Best Electricals Apps

Electrician Handbook — Basics

Electric circuit, voltage, ohm

Free

$5.99 | 100% OFF

This app provides electricians, students, and installers with essential electrical theory, interactive diagrams, and practical calculators. It includes a community forum for users to share knowledge and seek advice, all accessible offline without ads or subscriptions.

Electrical Troubleshooting MS

Are you a good troubleshooter?

Free

Learn to troubleshoot electrical circuits with a virtual voltmeter and PLC logic. This app offers 17 random electrical problems for a challenging learning experience, allowing you to practice identifying issues in motor starters and control circuits.

Master Electrician Ref. Lite

A handbook for electricians

Free

This electronic pocket reference guide provides essential information for electrical professionals. It offers calculations, code tables, and detailed sections on motors, ampacities, grounding, and more, all accessible on your mobile device.

Mike Holt's Electrical Toolbox

Electrical Power Calculator

Free

This app provides essential calculations for electricians, inspectors, contractors, and engineers. It helps determine conductor sizing, circuit protection, race sizing, and grounding conductor sizes for various electrical equipment and services.

Southwire® Conduit Fill Calc

by Southwire Company

Free

This tool assists electricians, engineers, and contractors in determining the correct conduit size based on NEC guidelines. It calculates conduit fill percentages and jam probability, saving time compared to manual calculations.

Electrician Handy Tool

All in one electricians tools

Free

This app provides electricians with essential tools for conduit bending, calculations, and quick reference. It simplifies electrical work with features like voltage drop calculation and a user-friendly fraction calculator.

Electrical Panel Designer

Switchboard Wiring Diagram

Free

$6.99 | 100% OFF

Design and assemble electrical panels with a comprehensive tool for electricians, designers, and homeowners. Create detailed wiring diagrams, route wires, and manage projects locally on your device. Features include a vast library of components and customizable labeling for clear documentation.

Wire Color Code

Electrical circuit colors

Free

This app helps electricians and DIYers identify electrical wire colors globally. It offers country-specific codes, a large circuit database, and quick search functionality. Customize colors for your projects and enjoy a user-friendly interface for efficient electrical panel wiring.

Ugly's Electrical References

by Informed Publishing

$12.99

This app provides electricians and electrical professionals with up-to-date digital information based on the National Electrical Code. It includes formulas, wiring diagrams, conduit bending guides, and calculators for various electrical calculations. The app is designed for on-the-job reference and works offline.

Ohm's Law

by Creature Code Mobile, LLC

Free

This utility app calculates electrical resistance, voltage, and current using Ohm's Law. It provides a quick and easy way to solve electrical formulas for various applications.

Electrical Calculations

Cable sizing & capacity

Free

This app provides a comprehensive suite of electrical calculations for professionals. It supports various international standards and offers detailed reports in PDF format. The tool covers wiring, power, motor, and electronic calculations, along with extensive conversion tables and resources.

Southwire® Voltage Drop Calc

Southwire Calculator

Free

Calculate the appropriate wire size for electrical circuits. This tool helps determine wire size based on voltage drop and current carrying capacity, ensuring compliance with NEC ampacity limits.

NEC Electrical Exam by Dakota

NEC Practice Test Questions

Free

Prepare for your electrical licensing exams with a vast library of practice questions, detailed explanations, and AI-powered assistance. Track your progress and identify weak areas to study more effectively for Journeyman, Master Electrician, and Contractor exams.

FieldVolt Electrical

Electrical Field Calculator

Free

This app assists electricians with complex calculations for pipe bending, conduit fill, ampacity, voltage drop, and box fill. It also offers a professional subscription for expert electrical advice and troubleshooting.

Electrical Symbols Quiz

Design circuits with ease

Free

Master electrical and circuit symbols with interactive quizzes. Ideal for students, electricians, and hobbyists, this app offers offline learning and practice for exams. Covers standard IEC/ANSI symbols.

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.

Journeyman Electrician (2025)

Master NEC Exam Practice Test

Free

Prepare for your journeyman electrician certification exam with practice tests and mock exams covering electrical theory and the National Electrical Code. Track your progress with test history and bookmark important questions for later review.