Comparison

IPC Plumbing Code Calculator vs Plumbing Inspector

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

Head to head
About

IPC Plumbing Code Calculator

Features
Read full description

Plumbing code calculations — built for licensed plumbers, contractors, and inspectors working under the International Plumbing Code (IPC). IPC Plumbing Code Calculator puts 6 essential sizing and compliance calculators in your pocket, each one referencing the exact IPC table it's built from — so every result is defensible on an inspection. CALCULATORS • DFU Drain Sizing — Size horizontal branch and stack drains from fixture unit load (IPC Table 709.1) • Water Supply Sizing — Size supply pipes from WSFU demand (IPC Table E103.3(2)) • Vent Sizing — Size vent pipes from DFU load and developed length (IPC Table 916.1) • Trap Arm Distance — Check trap-to-vent distance compliance (IPC Table 909.1) • Grease Interceptor Sizing — Size commercial kitchen interceptors (PDI-G101 formula, IPC 1003.3.4) • Water Heater Sizing — Recommended tank size from household demand DFU Drain Sizing and Water Supply Sizing are fully free — calculate, view results, and export/share a PDF report with no restrictions. PRO — ONE-TIME PURCHASE, NO SUBSCRIPTION Unlock Vent Sizing, Trap Arm Distance, Grease Interceptor Sizing, and Water Heater Sizing, plus full PDF export for every module. Pay once, use forever — no recurring fees. BUILT FOR THE JOB SITE • Clean, fast, single-purpose calculators — no clutter • Generate professional PDF reports to share with clients or inspectors • Built-in reference tables for every module • Works offline • Available in English and Spanish IPC Plumbing Code Calculator is a reference and estimation tool. All calculations should be verified against the plumbing code edition adopted by your local jurisdiction before use in construction. Some states and municipalities adopt the Uniform Plumbing Code (UPC) or amend IPC tables locally.

About

Plumbing Inspector

Analyze plumbing installations with a single photo. Get a clear Pass, Fail, or More Information Needed result with plain-language findings and relevant code references. Use it for various residential plumbing components.

Highlights
  • Photo analysis for plumbing installations
  • Pass/Fail/More Information Needed results
  • Plain-language findings
  • IPC code references
  • Supports sink drains, traps, fixture connections, water heaters, and exposed pipes
  • AI-assisted visual screening
Read full description

Plumbing Inspector turns one clear photo into a concise, code-focused review of your plumbing installation. Take a photo or choose one from your library. The app provides: - A clear Pass, Fail, or More Information Needed result - Plain-language findings grounded in what the photo shows - Relevant IPC code references Use it to check visible sink drains, traps, fixture connections, water heaters, exposed pipes, and other residential plumbing installations. Start without creating an account. One successfully completed analysis is included at no charge. A separate paid Premium subscription is required for additional photo analyses and on-device History. Weekly and monthly purchase options are available. Cancel anytime. Plumbing Inspector provides AI-assisted visual screening against IPC and UPC model-code references. It is not a licensed inspection, engineering opinion, permit approval, or guarantee of compliance. Local code adoption is not evaluated. Final interpretation and approval belong to the local Authority Having Jurisdiction and, where appropriate, a licensed professional. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

IPC Plumbing Code Calculator4 screens
Plumbing Inspector3 screens

Verdict

The call

IPC Plumbing Code Calculator and Plumbing Inspector are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. IPC Plumbing Code Calculator sells 1 one-off in-app purchase and Plumbing Inspector sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
IPC Plumbing Code Calculator versus Plumbing Inspector: the parameters behind the verdict, then further details
ParameterIPC Plumbing Code CalculatorPlumbing Inspector
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Fortnightly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size15 MB23 MB
Age rating4+4+
DeveloperV PUGAZHENTHIAngry Deli LLC

In-app purchases

1 purchases

IPC Plumbing Code Calculator

One-time1
  • PLUMBING PRO$7.99
2 purchases

Plumbing Inspector

Subscriptions2
  • Premium Weekly$4.997 Days
  • Premium Monthly$9.991 Month

Questions

Is IPC Plumbing Code Calculator free?
IPC Plumbing Code Calculator is free to download, with in-app purchases available.
Is Plumbing Inspector free?
Plumbing Inspector is free to download, with in-app purchases available.
Do IPC Plumbing Code Calculator or Plumbing Inspector have ads?
Neither IPC Plumbing Code Calculator nor Plumbing Inspector shows ads.

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