Skip to main content

Apps / Boiler Operator Prep

Boiler Operator Prep icon

Boiler Operator Prep

IndustrialComing Soon

Steam pressure reference + state boiler license exam practice

Coming soon to iOS & Android · join the waitlist below

Notify Me When Available
1,000+Practice Questions
2026Latest Edition
OfflineNo Wi-Fi Needed
$59.99Lifetime Access

Why Boiler Operator Prep?

Steam Pressure & Efficiency Calculator

Steam pressure, efficiency, and blowdown reference for boiler operator scenarios

1,000+ Practice Questions

1,000+ boiler operator exam questions covering ASME codes and safe operation

Works Offline

Full offline access — study in the boiler room or anywhere without Wi-Fi

Progress Tracking

Per-topic progress tracking across all boiler operator license exam categories

How It Works

Step 01

Download Free

Free to download on the App Store — unlock everything once for $59.99.

Step 02

Practice Daily

Built-in calculators you'll use on the job — not just quizzes.

Step 03

Pass First Try

$59.99 once. No subscriptions. No recurring fees.

App Screenshots

Practice Questions

Steam Pressure & Efficiency Calculator

Progress Dashboard

Screenshots coming soon — download from the App Store to see the full experience.

Pricing

Best Value

VoltExam

$59.99one-time

  • Pay once, use forever
  • No monthly fees
  • Full offline access
  • All updates included

Competitors

$60–$180/year

  • Subscription required
  • Lose access if you cancel
  • Often requires Wi-Fi
  • Recurring fees forever

Trusted by Tradespeople

Passed my exam on the first try. The Steam Pressure & Efficiency Calculator and practice questions are exactly what the test covers.

A. Johnson, Verified user, United States

Best $59.99 I've spent on exam prep. The practice questions are harder than the real test — in the best way.

M. Williams, Verified user, United States

Not affiliated with or endorsed by any licensing body, exam organization, or government agency. All trademarks belong to their respective owners. Full disclaimer