NEC Mastery

Developer: Webrich Software Limited

Category: Education

Add App to Comparison

6.7K installs

133 ratings

316 monthly active users

$<10K monthly revenue est.

IAP 100% · Ad 0%

Install Trends

Weekly +67

Steady

Monthly +251

Steady

NEC Mastery Summary

NEC Mastery is a with in-app purchases iOS app in Education by Webrich Software Limited. Released in Oct 2024 (1 year ago). It has 133 ratings with a 4.80★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 316 monthly active users and generates around $<10K monthly revenue (100% IAP / 0% ads). Store metadata: updated Apr 14, 2026.

Recent activity: 2.00 new ratings this week View trends →

Store info: Last updated on App Store on Apr 14, 2026 .

SDKs, Trackers & Permissions

App not yet scanned for SDKs.

App Details

Store ID: 6720711044

First Released: 2024-10-02

Store Last Updated: 2026-04-14

In-App Purchases: Yes

Ads: No

Website: necmastery.com

App Store

Crawl Status: Success

AppGoblin First Crawled: 2025-04-03

AppGoblin Last Crawled: 2026-04-15

Ads & App-Ads.txt

App does not have ads.

AppGoblin SDK Scans

App not yet analyzed for SDKs.

The download and scan process is automated but can require manual troubleshooting. Feel free to reach out if your request does not complete in 24hrs or if you have any questions.

4.8★

Ratings: 133

5★

4★

3★

2★

1★

Screenshots

App Description

Developed with insights from licensed electricians and instructors nationwide, this app has helped thousands pass their exams and stay updated with the latest 2023 NEC Code and 2024 changes.

Prepare for your NEC Certification Exam with the most comprehensive study tool designed for Journeyman, Master Electricians, Electrical Contractors, Maintenance and Sign Electricians, Inspectors and Examiners.

NEW — Quick Reference
Your pocket electrician's reference with 13 categories and 100+ items — all offline:
• Electrical Formulas (Ohm's Law, AC/DC power, impedance, power factor)
• Ampacity Tables (NEC 310.16, temperature derating, conduit fill adjustment)
• Wire Properties & Insulation Types
• Conduit Fill (EMT, RMC, PVC) & Conduit Bending
• Box Fill Calculations
• Voltage Drop Tables & Max Distance Lookups
• NEMA Plug/Receptacle Configurations
• Motor FLC Tables & Branch Circuit Sizing
• Grounding (EGC & GEC Sizing, Electrode Types)
• Transformer Formulas & OCPD Sizing
• Electrical Symbols & Unit Conversions
Bookmark any reference, search by NEC article number or keyword, and jump directly to related calculators.

NEW — 20 NEC Calculators
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, and Fault Current.

NEW — Electrician Hour Log
Track your apprentice or journeyman work hours:
• 12 work categories and 4 sector types
• Dashboard with charts and goal tracking
• PDF export for state board submissions
• iCloud sync across all your devices

Exams Covered
- Master & Journeyman Electrician: F16, F17, G17, T17
- Residential Electrician: F18, G18, T18
- Maintenance & Sign Electricians: F19, F21, F22, F23
- Electrical Contractor: F49
- Inspectors & Examiners: E1, E2, E3

Certifications Covered
- Commercial Electrical Inspector
- Journeyman Electrician
- Electrical Contractor
- Electrical Plans Examiner
- National Standard Journeyman Electrician
- National Standard Journeyman Sign Electrician
- National Standard Low Voltage Technician
- National Standard Maintenance Electrician
- National Standard Master Electrician
- National Standard Master Sign