42 exam prep apps for tradespeople — electrician, CDL hazmat, crane operator, HVAC, plumber, welding, real estate, and 35 more trades. Built by one founder. No VC funding. Just a platform that helps tradespeople pass their licensing exams. 34,000+ practice questions, trade-specific calculators, free cheat sheets, and study tools. Web + iOS + Android. Start free for 3 days.