Trades & Certification
Field toolkits and exam prep for the trades: fire alarm, sprinkler, electrical, HVAC, plumbing, inspection and welding.
Fireforge: Fire Alarm Tools
Trades & CertificationNAC drop, battery, candela & conduit bending — the fire alarm tech's toolbox.
Voltbox: Electrician Toolbox
Trades & CertificationWire, breaker & conduit calculators plus a full multimeter guide. Offline.
VoltPrep Electrician Exam Prep
Trades & Certification1,000 practice questions for the journeyman and master electrician exams.
CoolForge: EPA 608 Prep
Trades & CertificationEPA 608 prep: Core, Type I, II & III. Timed mock exams. Works fully offline.
Fire Sprinkler ITM Prep: NICET
Trades & CertificationNFPA 25 ITM prep: every frequency searchable, real-length NICET mock exams
Airforge: HVAC/R Field Tools
Trades & Certification33 offline HVAC/R tools: P/T charts, superheat, subcooling, diagnosis & more.
Pipeforge: Plumbing Tools
Trades & CertificationPipe sizing, DWV, gas, water heater & well calculators. Offline fault finder.
Fire Alarm Prep: NICET Exam
Trades & CertificationNICET fire alarm exam prep — 1,000 questions, mock exams, flashcards & calculators
Fire Alarm ITM Prep: NICET
Trades & CertificationInspection & Testing Level I & II: 1,000 questions, mock exams, NFPA 72 tools.
Flowforge: Fire Sprinkler Kit
Trades & CertificationSprinkler fitter calculators: K-factor, friction loss, flow test, NFPA 25 ITM.
CableForge: Low Voltage Tools
Trades & CertificationLow-voltage field toolkit: cabling, CCTV, PoE, fiber, AV & 22 pro tools.
ERCES Prep: ERRCS BDA & DAS
Trades & CertificationERCES & ERRCS exam prep: 200 questions, timed sims, and offline RF field tools.
BuildSmith: Construction Calc
Trades & Certification37 trade calculators, code tables and converters. Fast, offline, no login.
Fire Sprinkler Layout Prep - NICET
Trades & CertificationNICET Water-Based Layout practice exams, NFPA 13 hydraulics, and offline tools
CoreForge: HVAC Exam Prep
Trades & CertificationHVAC certification exam prep: 1,000 questions, mock exams, fully offline.
Building Inspector Exam Prep
Trades & Certification1,000 practice questions and timed mock exams for B1, B2, E1, M1 and P1.
Special Hazards Exam Prep
Trades & CertificationStudy for the NICET Special Hazards Systems exam. 1,000 questions, offline.
CWI Prep: Welding Inspector
Trades & Certification1,375 CWI practice questions, timed mock exams and spaced review. Offline.