NEC Master Suite vs Substation Engineer Suite

NEC Master Suite is the all-in-one study and code tools app for electricians preparing for exams and improving code-book speed. Choose the track that fits your goal: Journeyman Electrician Master Electrician Electrical Inspector Maintenance Electrician California C-10 Study smarter with: Adaptive practice sessions Full mock exams Flagged-question review Flashcards for weak areas Code lookup drills Topic-based progress tracking Use built-in electrical calculators for: Voltage Drop Conduit Fill Box Fill Dwelling Load Grounding & Bonding Derating Motor Circuit Transformer Fault Current Service & Feeder Ohm's Law The built-in NEC reference experience helps you move through topics faster, improve lookup speed, and stay focused in one workspace instead of switching between multiple apps. Whether you are preparing for your first journeyman exam, leveling up to master electrician, studying for California C-10, reviewing inspection topics, or sharpening maintenance troubleshooting skills, NEC Master Suite gives you a focused way to study and practice. NEC Master Suite is an educational and study tool. Always verify official code books, local amendments, and field decisions before relying on calculations, references, or interpretations.

Substation Engineer Suite is the complete professional reference and learning suite for high-voltage power substation design — a fully interactive 3D substation, an extensive engineering drawing library, IEEE/NFPA references, and a full set of field calculators, all in one app. Whether you're a power engineer reviewing a single-line diagram, a student learning how a substation actually works, or a field technician who needs a fast calculation on site, SubstationEngineer puts substation knowledge in your pocket — and it works completely offline. The app is organized into two modules. Buy only what you need, or get both in a discounted bundle. ELECTRICAL SUBSTATION TOOLKIT • 160+ professional engineering illustrations across 10 categories • Pinch-to-zoom with smooth swipe navigation • Favorites and personal notes on any drawing • Full-text search across the entire library • 10 engineering calculators (transformer sizing, fault current, grounding, and more) • IEEE / NFPA reference library • 30-question knowledge quiz 3D EXPLORER • Interactive 3D substation model with 54 tappable components • Tap any component for its code reference and engineering notes • X-Ray and Energize visualization modes • 8 filterable equipment systems • 15 engineering calculators (IEEE 80 grounding, fault, transformer, and more) • Learning Hub: quiz, glossary, guided tour, and fault simulator • Substation image gallery WHY YOU'LL USE IT • Works 100% offline — no account and no internet connection required • One-time purchases — no subscriptions, ever • Buy a single module or unlock everything with the bundle • Grounded in IEEE and NFPA engineering standards • Built for real engineering work, from the classroom to the control house From study to substation, SubstationEngineer is the reference you'll actually keep on your phone. IEEE and NFPA are trademarks of their respective owners. This app is an independent reference and study aid and is not affiliated with, endorsed by, or sponsored by IEEE or NFPA.