Comparison

Backflow Buddy vs Plumbing Exam Prep 2026

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Backflow Buddy

This app simulates backflow prevention devices and their testing procedures. It offers customizable water pressure simulations and quizzes to prepare users for certification exams.

Highlights
  • RPZ and Test Gauge simulation
  • Double Check and Test Gauge simulation
  • Customizable internal water pressure
  • Differential pressure gauge simulation
  • Quiz preparation with multiple lengths
  • Randomized industry-expert questions
  • Comprehensive quiz results
Features
Read full description

Backflow Buddy was designed to be a teaching tool for instructors and a learning tool for anyone interested in back flow prevention assemblies and how they are tested. Features include: - Simulation of RPZ and Test Gauge - Simulation of Double Check and Test Gauge Imagine seeing what is happening inside a backflow device as water moves through it. The water pressure in different portions of the device is fully customizable, allowing users to simulate a failing check valve or even back siphonage. Simulators include working accurate differential pressure gauges that can be hooked up to the devices. -Quiz Prep Prepare yourself for upcoming exams. With three quiz length options, you can test your self on a variety of backflow subjects. Questions created by industry leaders and educators. Randomized questions with comprehensive results at the end of each quiz, to help see what you're missing.

About

Plumbing Exam Prep 2026

Features
Read full description

Pass your plumbing license exam with confidence. Plumbing Exam Prep 2026 is the all-in-one study app for journeyman and master plumber certification — packed with 2,000+ original exam-style questions, full-length timed mock exams, and a smart study plan built around you. Whether you’re an apprentice starting out or a pro renewing your license, you’ll practice real exam-style questions across every major topic and walk in ready. WHAT YOU GET • 2,000+ exam-style questions across 13 topics, with an explanation for every answer choice • Built from public journeyman and master exam outlines, with IPC, UPC, and IFGC values labeled where codes differ • Full timed Mock Exams with a pass score and Strict Mode to build real test-day stamina • Spaced-repetition Flashcards that resurface your weak spots before you forget them • Mistake Bank — every wrong answer is saved so you can drill exactly what you got wrong • Quick 10, Timed, and Build-Your-Own custom quizzes • Progress dashboard: readiness score, per-topic mastery, streaks, and exam-readiness • Learn section: 270+ study notes, a 220-term glossary, formulas, and an expanded Key Numbers cheat sheet with DFU, vent, gas, backflow, and ADA values • Read-aloud questions, Dark Mode, and full offline access — study anywhere, no Wi-Fi needed TOPICS COVERED Plumbing administration & safety, water supply & distribution, sanitary drainage (DWV), venting, fixtures & fixture fittings, water heaters, pipe/tube/fittings & joining, plumbing math & pipe sizing, backflow & cross-connection control, fuel gas piping, storm drainage, private sewage & special wastes, and plan/isometric reading. SUBSCRIPTION & PRICING (purchase required) Plumbing Exam Prep 2026 requires a subscription or a one-time Lifetime purchase to unlock the full question bank, mock exams, flashcards, and analytics. Options: • Monthly — $9.99 / month • Annual — $49.99 / year (includes a 3-day free trial) • Lifetime — $99.99 one-time purchase (not a subscription) Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. You can manage or cancel anytime in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://appios432.blogspot.com/p/privacy-policy_0730638808.html DISCLAIMER Plumbing Exam Prep 2026 is an independent study aid and is not affiliated with, authorized, endorsed by, or sponsored by any plumbing licensing board or code-publishing organization. All trademarks are the property of their respective owners. All practice questions are original and were written by our team based on publicly available exam objectives and general plumbing-code concepts. Plumbing codes vary by jurisdiction — always verify against the code adopted in your area.

Screenshots

Backflow Buddy3 screens
Plumbing Exam Prep 20264 screens

Verdict

The call

The clearest difference is price: Plumbing Exam Prep 2026 at Free against Backflow Buddy's $1.99. Plumbing Exam Prep 2026 also leads on ads (none vs shown). Backflow Buddy's advantage is in-app purchases (none vs 3) and update cadence (fortnightly vs every 4 months). On device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Plumbing Exam Prep 2026 is free to download; Backflow Buddy costs $1.99 up front. Plumbing Exam Prep 2026 sells 3 in-app purchases, starting at $9.99 per month. Backflow Buddy asks for nothing beyond the download.

UpkeepUpdate frequency

Backflow Buddy ships an update fortnightly, Plumbing Exam Prep 2026 every 4 months. The most recent releases landed on November 4, 2026 and November 7, 2026 respectively.

Scorecard5 real differences · 5 level
Backflow Buddy versus Plumbing Exam Prep 2026: the parameters behind the verdict, then further details
ParameterBackflow BuddyPlumbing Exam Prep 2026
Price$1.99Free — better
Rating3.7 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyFortnightly — betterEvery 4 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size258 MB3 MB
Age rating17+4+
DeveloperGreg PhillipsMD Shahariar Nazim Joy

In-app purchases

None

Backflow Buddy

No in-app purchases

3 purchases

Plumbing Exam Prep 2026

Subscriptions2
  • Pro Monthly$9.991 Month
  • Pro Yearly3 Days trial$49.991 Year
One-time1
  • Premium Lifetime$99.99

Questions

Is Backflow Buddy free?
Backflow Buddy costs $1.99, with no in-app purchases.
Is Plumbing Exam Prep 2026 free?
Plumbing Exam Prep 2026 is free to download, with in-app purchases available.
Do Backflow Buddy or Plumbing Exam Prep 2026 have ads?
Backflow Buddy shows ads; Plumbing Exam Prep 2026 does not.
Which is updated more often, Backflow Buddy or Plumbing Exam Prep 2026?
Backflow Buddy ships an update fortnightly, and Plumbing Exam Prep 2026 every 4 months. Most recently, Backflow Buddy was updated on November 4, 2026 and Plumbing Exam Prep 2026 on November 7, 2026.

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