NEC Mastery

Name: NEC Mastery
Rating: 4.8 (157 reviews)
Author: Webrich Software Limited

by Webrich Software Limited

iPhone · iPad

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: Free to download
In-app purchases

Categories and search queries

Official categories

Education
Reference

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Free app	Yes	Free	—	Store published
In-app purchases	Yes	Limited free	—	Store published

Screens

No screenshots collected yet.

Pricing & paywalls

App Store

Free to download
In-app purchases

Last verified 31 Jul 2026

Ratings & reviews

App Store

4.8 157 ratings · App Store

5/5Well made NEC app
This app has been very well made and I enjoy using it, however within just a few uses I’ve figured out the majority of the time the correct answer is the longest option within A,B,C or D so I would recommend finding ways to make it a bit more difficult as I can easily get the answers correct to things I do not know without looking them up so to the correct answer being obvious

Lewis391 · 31 Jul 2026
5/5User-Friendly and Cọmprehensive
NEC Electrician Exam Prep Pro simplifies the studying process with its user-friendly layout and cọmprehensive content. I love the flashcards feature, which is great for quick revision. The app is clearly designed with students in mind, making it easier to absorb essential information. I’m feeling much more confident about my upcọming exam!

daniela_carrierq · 31 Jul 2026
5/5Awesome app and field toolkit
I cant praise this app enough - it has got everything for anyone who wants to go on their journey to be an electrician, starting with your exam prep for all kinds of exam to calculators, quick reference tools and utilities, it has got you covered. All you need is just this app.

iPhoneCrazy123 · 31 Jul 2026
5/5Extensive and clean
Plenty to practice in a clean app. No nonsense app. To the point without confusing features like other apps.

JimMolh · 31 Jul 2026
5/5Huge help for my study
Am at a stage where I am reading NEC code book and other reference books page by page. Downloaded quite a few apps and one of them is this. I found this to be the best as its extensive and easy to use.

iPhoneCrazy123 · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

24
User Requested Features: 1. You can now choose to show or hide chapter numbers in mock test. 2. Flash Cards Data Fixes
25
Data Fixes
26
Set Your Exam – Select your certification exam in settings for a tailored mock test experience. Control Your Test – Choose the number of questions to match your study needs. Enhanced Settings View – Smoother navigation for effortless customization.
27
Bug fixes related to voice over.
29
Bug Fixes in Exam Specific Mock Tests
30
1. Exam Date Reminder. 2. Bookmarking. 3. Report error in review screen. 4. Time taken now includes review time as well.
31
1. Bug Fix: Mock Test Empty 2. Exam Date Reminder. 3. Bookmarking. 4. Report error in review screen. 5. Time taken now includes review time as well.
32
Bug fixes in: Report Error Feature, Mock Test in Lite Version
33
We heard you! Extensive Certification and Syllabus Selection Much more complicated MCQ
34
We heard you! Extensive Certification and Syllabus Selection Much more complicated MCQ But Fixes in Mock Test for iPad
35
We heard you! Your 3 most requested features are here: Extensive Certification and Syllabus Selection Much more complicated MCQ History of 50 tests saved for analysis Bug Fixes in Mock Test for iPad
36
Performance Improvement - Now the app runs faster! We heard you! Your 3 most requested features are here: Extensive Certification and Syllabus Selection Much more complicated MCQ History of 50 tests saved for analysis
37
Minor UI Fixes
38
Minor UI Fixes
39
UI Fixes
40
UI Fixes
41
Major Update — 3 Powerful New Tools for Electricians! QUICK REFERENCE (NEW) Your pocket electrician's reference — better than Ugly's! 13 categories with 100+ reference items, all available offline: • Electrical Formulas — Ohm's Law, AC/DC power, power factor, impedance, resonance • Ampacity Tables — NEC 310.16 copper & aluminum, temperature derating • Wire Properties — AWG specs, resistance values, insulation types • Conduit Fill — EMT, RMC, PVC fill tables with conductor counts • Conduit Bending — Offset multipliers, stub-up deducts, saddle bends • Box Fill — Conductor volumes, standard box sizes, calculation examples • Voltage Drop — 1Φ and 3Φ formulas, reference tables, max distance lookups • NEMA Configurations — All common straight blade & locking plug/receptacle configs • Motor Data — Single & three-phase FLC tables, branch circuit & OCPD sizing • Grounding — EGC and GEC sizing tables, electrode types • Transformers — Turns ratio, kVA-to-amps, OCPD sizing for ≤600V and >600V • Electrical Symbols — Receptacles, switches, lighting, panels, motors • Unit Conversions — AWG↔mm², temperature, electrical units, fractions Features: Bookmark any item, full-text search, recently viewed, tap-to-highlight table rows, copy to clipboard, links to related calculators. 20 NEC CALCULATORS (NEW) Professional-grade calculators with NEC code references: Ohm's Law, Power Converter, Wire Size, Ampacity Derating, Voltage Drop, Conduit Fill, Box Fill, Breaker Sizing, EGC Size, GEC Size, Motor Circuit, Motor Feeder, Lighting Load, EV Charger Load, Residential Load, Commercial Load, Transformer OCPD, Transformer Conductor, Cover Depth, Fault Current ELECTRICIAN HOUR LOG (NEW) Track your apprentice/journeyman work hours with iCloud sync: • 12 work categories (Raceways, Conductors, Services, Motors, Lighting, etc.) • 4 sector types (Residential, Commercial, Industrial, Maintenance) • Dashboard with charts and goal tracking • PDF export for submitting to your state board • Syncs across all your devices via iCloud
42
Bug Fixes
44
Clear all bookmarks feature added Layout fixes
45
Locale specific improvements
46
Bug fixes
47
Bug fixes
48
Bug fixes
49
• New Books & Tools — curated NEC code books, test instruments, hand tools, and study guides recommended for exam prep. • Hour Log: new "Clear All" option for resetting log entries when you start a fresh apprenticeship cycle. • Exam selection: larger tap area for easier picking, especially on iPad. • Minor fixes and refinements throughout.
50 · 20 Jul 2026
Question banka corrections

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Availability by market

Data quality & evidence

Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.
Screenshots: not yet collected

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Compare this app with its closest alternatives.

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