Apps / Plumber Prep
Plumber Prep
IndustrialLive on App StorePlumber Prep is an iOS app for the journeyman plumber licensing exam — it includes 1,000+ IPC and UPC practice questions covering pipe sizing, drainage fixture units, and venting rules, plus a built-in pipe DFU calculator, for $17.99 with lifetime access, no subscription, works offline.
iOS · Free to download · $17.99 one-time unlock
Why Plumber Prep?
Pipe Sizing Tool
Pipe sizing tool with DFU calculations for both IPC and UPC code systems
1,000+ Practice Questions
1,000+ journeyman plumber questions covering IPC and UPC code editions
Works Offline
Full offline access — study in the field or on the job site without Wi-Fi
Progress Tracking
Per-topic progress tracking to identify your weak code areas before exam day
How It Works
Step 01
Download Free
Free to download on the App Store — unlock everything once for $17.99.
Step 02
Practice Daily
Built-in calculators you'll use on the job — not just quizzes.
Step 03
Pass First Try
$17.99 once. No subscriptions. No recurring fees.
Pricing
VoltExam
$17.99one-time
- ✓ Pay once, use forever
- ✓ No monthly fees
- ✓ Full offline access
- ✓ All updates included
Competitors
$20+/month
- ✕ Subscription required
- ✕ Lose access if you cancel
- ✕ Often requires Wi-Fi
- ✕ $240+ per year
Trusted by Tradespeople
“Got my journeyman license first try. The pipe sizing calculator made the math section feel completely manageable.”
— Tony B., Plumber, Arizona
“I had been failing the exam for a year before I found this app. Passed two weeks after downloading it.”
— Frank L., Plumber, Illinois
Frequently Asked Questions
How many questions are on the journeyman plumber exam?
Most state journeyman plumber exams have 70–100 multiple-choice questions covering the IPC or UPC code. Passing typically requires 70–75%. Some states also include a separate trade theory or local amendment section.
What code is the plumber exam based on — IPC or UPC?
It depends on your state. The International Plumbing Code (IPC) is used in most eastern and midwestern states. The Uniform Plumbing Code (UPC) is used primarily in western states like California, Oregon, and Arizona. VoltExam's Plumber Prep includes questions for both codes.
What topics appear most on the journeyman plumber exam?
Expect heavy coverage of pipe sizing and DFU calculations, fixture installation requirements, water supply and pressure regulations, drainage and venting systems, and code-specific table lookups. Math-based sizing questions are common.
Does the plumber exam allow open-book testing?
Many states allow you to bring a tabbed, highlighted copy of the IPC or UPC to the exam. However, you still need to know the code well enough to find answers quickly. VoltExam teaches you where to find answers, not just memorize them.
