250+ iOS apps curated and reviewed
From beginner-friendly picks to power-user tools, our nec code book list covers 250+ iPhone apps updated through August 2026. Compare ratings, prices, and screenshots in one place.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (161) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.6★ (197) | No | No | Aug 2026 |
| 3 |  | Free | 4.7★ (2.5K) | No | No | Aug 2026 |
| 4 |  | Free | 4.8★ (9.2K) | No | No | Aug 2026 |
| 5 |  | Free | 3.8★ (5) | No | Yes | Jul 2026 |
| 6 |  | $12.99 | 4.4★ (1.5K) | No | No | Aug 2026 |
| 7 |  | Free | 4.5★ (746) | No | No | Aug 2026 |
| 8 |  | $1.99 | 3.7★ (25) | No | No | Aug 2026 |
Prepare for electrician certification exams with over 8,000 practice questions and detailed explanations. Access a comprehensive quick reference guide and 20 professional NEC calculators for on-the-job use. Track work hours with a built-in log for state board submissions.
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.
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.
Test your electrical knowledge daily with a new question based on the US electrical code. Perfect for apprentices, journeymen, and masters seeking to learn or refresh their understanding of electrical concepts and regulations.
Prepare for your electrical code certification with a comprehensive study tool. Access over 2,500 practice questions with detailed explanations and track your progress. Create custom tests to focus on challenging topics and ensure you're studying the most current code standards.
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.
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.
This app provides quick access to commonly used information from the 2017 National Electrical Code (NEC). It's designed for electrical engineers and electricians needing on-the-go reference material for office or construction site use.
Prepare for your Journeyman Electrician certification exams with a comprehensive mobile study tool. Practice over 1,200 questions across various electrical topics, including definitions, calculations, and equipment. Boost your confidence and readiness for the official test.
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.
Master Morse code with this modern trainer. It offers adaptive audio, speed drills, and progress tracking using scientifically designed lessons. Ideal for beginners and experienced users looking to improve fluency.
Quickly scan and share QR codes and various barcode types. Save scanned content to your history and choose from multiple sharing options. Your scanning data remains private and is not used by the application.
