Pass your trade exam.
Pay once. Keep it for your career.
Real practice questions, a built-in AI tutor that explains every answer, and the code-compliant pro tools — voltage-drop calculators, placard builders, load charts — tradespeople actually use on the job. One-time price, not another subscription. Start free — no account.
No account to start · Built-in AI tutor · 44 trade exams · iPhone & Android · Pay once, keep forever
Pass Promise — eligible plans get 4 months extra access38 exams — including yours
Which exam are you studying for?
Search your exam below, then answer 5 real questions — each with an instant AI explanation. See how it feels before you commit a cent.
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Meet VoltAI
The AI tutor that teaches, not just grades
Flashcards and question banks tell you the right letter. VoltAI teaches you why it's right — in plain language, citing the actual code, protocol, or standard — so on exam day you can answer the version you've never seen. Understand it once; pass the first time.
Studying without AI
You memorize that the answer is C. On exam day the numbers change or the question is reworded — and you're guessing again.
Studying with VoltAI
You learn the rule behind C. When the exam rewords it, you still get it right — because you actually understand it. That's the difference between passing and re-testing.
Why VoltAI beats a flashcard
- Explains why, not just what. Every wrong answer gets a plain-language reason from the code or protocol it comes from — the way a good instructor would.
- Answers your follow-ups. Ask back in your own words until it clicks. VoltAI keeps the thread, so you can dig into the exact rule.
- Free to try before you pay. VoltAI is built into the no-signup practice set — experience the tutor before spending a cent.
- One tutor, 44 trades. The same tutor teaches electrical code, clinical EMS, weld inspection, mortgage law and more — nobody else spans this range.
Ask a real question about the Electrician exam — VoltAI answers instantly, free. Try a couple before you sign up.
Ask the AI Study Tutor
AI study help — verify against official exam materials.
The native iOS apps go further: their adaptive engine runs on-device with CoreML, so practice and readiness scoring work on job sites with no signal. See the technology →
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Stop guessing what to study. Pick your exam and we'll lay out the exact path from where you are now to passing — what to cover each week, which questions to drill, and the tools you need at each step.
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Any of our 44 trades.
Follow the weeks
Topics, drills and tools, in order.
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Week 1 is free · no account needed
43
Exam prep apps
32,592+
Web practice questions
4.6 ★
From 44 App Store ratings
$59.99
One-time, no sub
Journeyman & Master Electrician · NEC 2026
Electrician Exam Prep
570+ practice questions covering the 2026 NEC — load calculations, conduit fill, grounding, and motors. Built-in voltage-drop calculator. Updated for the new code cycle and covering all 50 states + DC.
Our Difference
Not just quizzes.
Professional utility tools.
Every VoltExam app ships with a proprietary, code-compliant tool that real professionals use on the job. Not to study. On actual job sites, on trucks, in the field.
The exam questions are there to get you licensed. The tools are there because you'll keep using them long after the exam is over.
Other apps
- ✕ Quiz banks only
- ✕ No on-job utility
- ✕ Subscription lock-in
- ✕ Generic content
VoltExam
- ✓ Built-in pro tools
- ✓ Daily job use
- ✓ One-time purchase
- ✓ Code-accurate content
Electrician
Voltage Drop Calculator
CDL Hazmat
DOT Placard Builder
Crane Op.
Load Chart Calculator
HVAC
Refrigerant Charge Calc
EMT
GCS & Burn Calculator
Plumber
Pipe Sizing Tool
Simple process
How It Works
Step 01
Pick Your Trade
Choose from 43 specialized apps built for your exact certification — electrician, HVAC, EMT, crane, and more.
Step 02
Use Real Tools
Built-in calculators — voltage drop, pipe sizing, load charts — tools you'll actually use on the job, not just for studying.
Step 03
Pass First Try
Plans from $9.99/mo — or grab the $59.99 lifetime deal. No lock-in. Cancel anytime.
Real on-the-job tools
40+ pro calculators you keep for your career
Not just study aids — these are the same code-compliant calculators you’ll pull up on the job: voltage drop, conduit fill, crane load, weld symbols, dosages and more. Free to try, and yours for good with a one-time plan. No competitor gives you this.
Popular Exam Prep Apps
43 apps total · 32,592+ web practice questions
Pricing
Pay Once. Keep Forever.
Competitors charge roughly $60–$150 a year and cut you off when you cancel. VoltExam is $59.99 once — all updates included.
Competitor prices verified June 2026.
VoltExam
$59.99/one-time
- ✓Pay once, keep forever
- ✓Full offline access
- ✓All updates included
- ✓No account required
Pocket Prep
$59.99/per year (recurring)
- ✕Subscription required
- ✕Lose access if cancelled
- ✕Needs internet
- ✕Separate app per exam
Dearborn
$149.99/per year (recurring)
- ✕Subscription required
- ✕Real estate only
- ✕Needs internet
- ✕Monthly billing
FAQ
Common Questions
Is VoltExam a subscription?
The web platform offers a one-time $59.99 lifetime purchase that covers all web updates, with optional $9.99/month and $24.99/year plans if you prefer. Native iOS and Android apps are separate store purchases for offline mobile study.
Do I need an account to try it?
No. You can take a free practice test right in your browser with no account and no download. Create an account only when you want to save progress or unlock the full question bank.
Does VoltExam work on Android?
Yes. VoltExam runs on iPhone and Android, plus any browser on the web. A growing set of apps are live on Google Play, and every trade is available on the web platform.
Does one purchase unlock every platform?
No. Web, iOS, and Android purchases are separate today. Web plans unlock browser access at voltexam.com. Native app purchases are tied to Apple ID or Google Play and are best for offline mobile study.
What happens if I don't pass my exam?
VoltExam's Pass Promise: if you complete the program and still don't pass, submit your official score report within 30 days and we'll add 4 months of access free (not a refund — all sales are final). It applies to monthly and yearly subscription plans (lifetime one-time purchases are not eligible). See the Pass Promise page for the exact terms.
How many questions are included, and are they accurate?
Question-bank size varies by exam, with most apps offering hundreds to 1,500+ practice questions organized by topic, with full answer explanations — plus a built-in code-compliant tool (calculator or reference) for your trade.
Does it work offline?
Yes. The apps work fully offline — on the job site, in the truck, in a machine room, or anywhere with no signal. No internet required to study or use the tools.
Exam Prep Guides
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