VoltExam is a mobile exam prep platform for trade certification and professional licensing. We build iOS and Android apps covering 23+ trades — electrician (NEC 2023), HVAC (EPA 608), CDL hazmat, crane operator (NCCCO), EMT/NREMT, real estate, security guard, MLO (NMLS SAFE Act), and more. Each app includes 1,000+ exam-style practice questions organized by topic, built-in trade calculators (voltage drop, refrigerant charge, pipe DFU, load charts, and more), full offline access, and per-topic progress tracking. Pricing starts at $9.99/month with a 3-day free trial, $24.99/year, or $49.99 lifetime. Bulk licensing available for trade schools, apprenticeship programs, and employers.