Here we list a few of the best applications and software for Electrical operatives such as Electricians, Wiremen, Maintenance Engineers and Electrical Contractors.

Apps listed may include electrical apps to the National Electric Code, BS Standards and IEC Standards.

Electrical Contracting Apps

(Updated May 2022)

Electrical Code-A-Day

Can you beat the Master? See how many of the 366 questions you can answer correctly!

Electrical Code-A-Day has an electrical code question for each day in the year. Take a minute a day to answer a question, or answer as many as you can in one go. How you do it is up to you!

This quiz app contains basic electrician questions written by a real electrician.


Captain Code NEC Code Changes

National Electrical Code® (NEC®) compliance is paramount for all electrical professionals as noncompliance can mean costly rework and lost productivity.

The best solution for staying current on the NEC is the New Leviton Captain Code® App.

This easy to use, information tool is searchable by market vertical, product number, or article number. The App allows you to quickly identify and review code changes as it draws from three perspectives to provide clear and comprehensive Code data

DOWNLOAD for iOS | DOWNLOAD for Android

Mike Holt’s Electrical Toolbox

Mike Holt, the industry leader in the electrical industry ( has created an amazing, practical and useful app for the electrician, inspector, instructor, contractor and engineer.

The app contains conductor sizing (including voltage drop limitations), circuit protection sizing, race sizing, equipment grounding conductor sizing for electric heating equipment (commercial and Residential), air-conditioning equipment (commercial and Residential), motors (commercial and Residential), Transformers (commercial) , and dwelling-unit service calculations and sizing.

DOWNLOAD for iOS | DOWNLOAD for Android

Adiabatic Equation Calculator

The Adiabatic Equation for calculating the cpc (circuit protective conductor) and earth minimum csa sizes for earthing conductors.

Adiabatic Equation Calculator Formula
t = Disconnection time (seconds)
k = Conductor k value
la = Fault current (PEFC in Amps)
I² = la x la

No need to remember the complex adiabatic formula with this adiabatic calculator app for iPhone and iPad.

DOWNLOAD for iOS | DOWNLOAD for Android

Ugly’s Electrical References

Featuring new menu designs the Ugly’s Electrical References App 2020 has been updated to reflect changes to the 2020 National Electrical Code (NEC) and the 2020 Edition of our popular Ugly’s Electrical References book.

The Ugly’s 2020 App offers the most pertinent, up-to-date digital information for electricians, including table change information, mathematical formulas; National Electrical Manufacturers Association (NEMA) wiring configurations; a conduit bending guide with videos, ampacity and conduit fill information, transformer and control circuit wiring diagrams, and conversion tables.

DOWNLOAD for iOS | DOWNLOAD for Android

Electrical Calculations

Electrical Calculations… calculations that can help you in your work. It can not miss in your smartphone!


  • Electronic calculations
  • Conversions
  • Resources
  • Pinouts

DOWNLOAD for iOS | DOWNLOAD for Android


Electrodoc is a simple and powerful collection of electronics tools and references.

Electrodoc is the new app name of Electrodroid. Same app, with the same and even more features.
This is the free version, which contains ads; you can also buy from the app store the PRO version of the app to support the developer, unlock more features and get rid of the ads.

DOWNLOAD for iOS | DOWNLOAD for Android

For more electrical contracting apps and software visit >> Electrical Apps

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