Software for the trades, built so people pass.
Deeun builds VoltExam — the first mobile exam prep tagged to the exact code section, with explanations grounded in the actual jurisdictional code book. 42 licensed trades and certifications, in your pocket.
So the people who keep the lights on, the water flowing, and the buildings standing earn faster.
For 50 years, tradespeople studied from photocopied PDFs.
Heavy code books. Outdated study guides. Static practice tests with no feedback. The same materials, semester after semester.
First-time test takers fail. That's another exam fee. Another wait period. Another month before they can earn a journeyperson wage.
A precision instrument, at scale.
A modern study companion, tuned to the code.
VoltExam serves real exam questions tagged to the exact code section. Instant explanations grounded in the actual jurisdictional code book. A progress engine that finds your weak spots.
Five-minute drills. Picks up where you left off, remembers what you got wrong. Built to fit between jobs.
From apprentice to journeyperson, across the field.
We started with the electrical trades and grew the catalog as customers asked for more. Each app is purpose-built for its jurisdiction and code edition.
One operator. One obsession.
Today VoltExam ships 41 apps across the trades and licensed certifications — with more en route — and hundreds of thousands of practice questions grounded in the actual jurisdictional code. Bootstrapped, profitable, growing.
What is Deeun, exactly?
What is Deeun Inc.?
Deeun Inc. is a Canadian software company, founded in 2022, that builds modern exam-prep software for the skilled trades. It is independent, bootstrapped, and profitable, with no outside funding. Its flagship product is VoltExam.
What does Deeun make?
Deeun makes VoltExam, a family of mobile and web exam-prep apps covering 42 licensed trade and certification exams — from NEC electrician, HVAC, and plumbing to crane operator, CDL hazmat, NICET fire alarm, cosmetology, pharmacy tech, and real estate. Each app serves real exam-style questions tagged to the exact code section, with explanations grounded in the actual jurisdictional code book.
What is VoltExam?
VoltExam is Deeun's flagship product: modern, mobile-first exam prep for licensed trades and certifications. It offers practice questions tied to the exact code section, instant explanations, and a progress engine that surfaces a learner's weak spots. It is available on iOS, Android, and the web at voltexam.com.
Which trades and certifications does VoltExam cover?
VoltExam covers 42 trades and certifications across six categories: skilled trades & construction; transportation & equipment; health, safety & environment; beauty & personal care; healthcare support; and business, finance & legal. See the full list.
Where is Deeun based?
Deeun Inc. is incorporated and operated in Canada, and serves customers worldwide.
Is Deeun venture-funded?
No. Deeun is fully bootstrapped and profitable, with no outside capital.
More on the about page.