About
VoltExam
VoltExam makes exam prep apps for licensed tradespeople — the kind of people who need to pass a state licensing exam and get back to work. Each app combines 1,000+ practice questions with the built-in calculator they'll actually use on the job after passing. One-time $99.99 lifetime price. Works offline.
Is VoltExam legitimate?
Yes. VoltExam is a real educational software company — not a retailer, not a marketplace, and not affiliated with any e-commerce site. We make mobile and web apps to help tradespeople pass their licensing exams. We sell digital exam prep products only (no physical goods, no electronics, no power tools).
Legal name — Deeun Inc., a corporation incorporated in Ontario, Canada.
What we sell — iOS and Android exam prep apps at a one-time lifetime price of $99.99 per app. No physical products. No subscriptions required.
Where to buy — Only through the Apple App Store, Google Play, or this website (voltexam.com). We do not sell through any third-party website.
Scam confusion — There are unrelated scam websites with similar-sounding names that sell discounted electronics. VoltExam has no connection to those sites. If you were directed to a site selling physical products under a name resembling "VoltExam," that is not us.
Contact us — Questions? Email hello@voltexam.com. We reply within 24 hours.
Mission
Most exam prep apps are built for students with unlimited study time. VoltExam is built for working tradespeople who study during lunch breaks, between jobs, and on job sites with no cell signal. We keep things focused: the questions that actually appear on the exam, the calculations that matter on the job, and a price that doesn't require a monthly commitment.
Apps — 33 Live
CDL Hazmat Prep
Hazmat placarding guide + endorsement test prep
Real Estate Prep
Commission calculator + state licensing exam prep
Plumber Prep
Pipe sizing tools + journeyman exam practice
CWI Prep
Weld inspection tools + AWS certification practice
Crane Prep
Load chart calculator + NCCCO exam questions
Electrician Prep
Voltage drop calculator + 1,000+ NEC questions
HVAC Prep
Refrigerant charge calculator + EPA 608 questions
Forklift Prep
Load center calculator + OSHA certification prep
EMT Prep
GCS & burn calculator + NREMT exam questions
Security Guard Prep
Use-of-force reference + guard license exam prep
Notary Prep
Fee calculator + notary commission exam practice
Drone Prep
Airspace checker + Part 107 exam questions
Phlebotomy Prep
Order of draw + CPT certification exam practice
ASE Mechanic Prep
Torque reference + ASE A1–A8 exam practice
OSHA 30 Prep
Fall clearance calculator + OSHA 30 exam practice
Pesticide Applicator Prep
Mix rate calculator + pesticide license exam questions
Sterile Prep
Sterility reference + CRCST certification exam practice
Lead Renovator Prep
EPA RRP rule reference + lead renovation certification exam prep
Backflow Tester Prep
PSID calculator + backflow certification exam practice
Fire Alarm Prep
NICET fire alarm systems certification exam prep
Pool Operator Prep
Pool chemistry calculator + PHTA CPO certification exam prep
Insurance P&C Prep
Coverage reference + property & casualty license exam prep
Water Treatment Exam Prep
Water treatment operator certification exam prep
MLO Exam Prep
NMLS calculator + mortgage loan originator license prep
Cosmetology Board Prep
Chemical service reference + state board exam practice
Barber Prep
Blade angle guide + barber state board exam practice
Contractor License Prep
Scope of work reference + contractor license exam practice
Esthetician Prep
Skin analysis guide + esthetics state board exam practice
Massage Therapy Prep
Muscle & anatomy reference + MBLEx exam practice
PMP Prep: Project Management
PMBOK reference + PMP certification exam practice
LEED Green Associate
Green building reference + LEED GA exam practice
Nail Tech Prep
State board reference + nail technician license exam practice
Elevator Mechanic Prep
ASME A17.1 reference + NEIEP / state license exam practice
How VoltExam Compares
vs. Pocket Prep — Pocket Prep charges $10–$20 per month per trade. VoltExam is $99.99 once, forever. Pocket Prep requires internet connectivity. VoltExam works fully offline.
vs. Dakota Prep — Dakota's Pro plan costs $90–$150 for a single trade. VoltExam covers 33 trade categories at $99.99 each. Dakota has a larger question bank and an AI tutor; VoltExam has built-in job-site calculators and a price that doesn't require justifying to your employer.
vs. SkillCat — SkillCat focuses on HVAC and EPA 608 at $10/month and includes the actual exam booking. VoltExam is practice-only, covers 33 trades, and costs $99.99one time.
Free tools — Every built-in calculator is also available free on the web at voltexam.com/tools — no account required, works in any browser.
Company
Legal name — Deeun Inc.
Brand — VoltExam
Founded — 2024
Industry — Educational software / exam preparation
Platform — iOS, Android, Web
Apps — 33 live trade certification exam prep apps
Market — United States (US trade licensing and certification exams)
App Store — apple.com/developer/deeun-inc
Google Play — play.google.com/store/apps/developer?id=6741996831484338013
Contact
Support — hello@voltexam.com. We reply within 24 hours.
Press — See the press page for app screenshots, icons, and brand assets.
iOS apps — All VoltExam apps are published under Deeun Inc. on the Apple App Store.