NEC Electrical Exam Prep 4+

Created by Dakota Prep

Blue Collar Labs Inc.

    • 4.2 • 33 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


Created by licensed electricians with feedback from instructors and students from schools across all the US. Developed by engineers formerly from Google, Bloomberg, and Zynga.

If you’re looking to boost your score for your NEC Exam as a Journeyman, Master Electrician, or Electrical Contractor, you’ve come to the right place. On the app, you can practice over 2,000 questions with 100+ diagrams through simulating a timed NEC exam or practicing specific sections with hints and walkthroughs. Pick your state to generate the right curriculum for you.

Join the rank of thousands of electricians by finally getting their electrical license and download NEC Electrical Exam Prep today.


Features include:


Get access to over 2,000 exam questions with 100+ diagrams. Exam questions reflect all 6 sections of the exam including wiring methods, service & distribution, and motors & controls, and are carefully vetted by certified electricians for mistakes and accuracy to the exam.


You can select specific question types and sections to focus on in Practice Mode. Some of the modes include Occupational Skills, Service and Distribution, Wiring Methods, Motors and Controls, Special Occupancies, and Communication Systems. Hints are available for most questions to help you find the answer and provides a roadmap on how to get there.


See how you do on the actual NEC Exam by simulating it on the app. We design the curriculum based on your State. For example, if you’re doing the California exam, we provide you 100 questions, distributed & weighed similarly to exam, and allocate 4.5 hours for completion. You’ll be able to see what sections you did well on, sections that need improvement, and your average answer time.


Whether you’re on the subway or on lunch break on the job site, you’ll be able to get it a couple practice questions in. With No Codebook mode, you can practice 25 questions without needing to lug around a heavy NEC codebook all day.


More Questions?
Contact us at if you have any feedback or questions.

What’s New

Version 1.1.8

Updated Montana to the 2020 code

Ratings and Reviews

4.2 out of 5
33 Ratings

33 Ratings

Get rid of it! ,

Best Exam app out there, needs improvement

The app definitely helped me refresh my code book skills. One of the biggest challenges I encountered while using the app is some of the wire description (such as insulation type, cable acronyms and wire sizes) must have been a Canadian standard which didn’t seem to correlate very clearly with the standard we use here in the states. Outside of those occasions there were a few references in the hint tab that I was able to disprove.

All said and done I like the app and may use it again in the future. I would recommend it to anyone needing another resource to study for their exam.

Developer Response ,

Hi! Thank you for your review. We’ve reviewed our questions to ensure all questions follow the American standard for wire names and it has been reflected in the app.

trinity alps ,

Great way to lean

It’s easy to take a few minutes before work or whatever to take the quizzes. Good way to see where you’re at and what you need to work on. And just good practice finding things in the book

Agnarr Njord ,


Nope needs work on a fundamental basis

Questions are not checked for accuracy of grammar, or accuracy of question to selected answer type/conditions.

Don’t ask how many receptacles allowed in situation “x” and only provide selectable answers of wire gauge AWG.

Developer Response ,

Hi Agnarr, sorry to hear about your experience with the app. If it’s possible, please send any issues with questions to and we’ll take a look immediately. We can have our curriculum team take a look at the questions and adjust accordingly.

App Privacy

The developer, Blue Collar Labs Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

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