Pipehound

Plumbing code answers on site

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Ask the plumbing code in plain English — hands-free with voice — and get answers with section citations for your state. Built for plumbers, fast enough for the jobsite. PipeHound is your plumbing-code field dog — ask code questions in plain English and get fast answers with code-section citations for your state. BUILT FOR PLUMBERS ON THE JOB • Ask in plain English — no more flipping through the code book • Hands-free voice input with a big, glove-friendly mic button • Answers cite the code sections so you can verify fast • State-aware: pick your state and PipeHound answers from the right code • Chat history stays on your device — no accounts, no tracking CODES COVERED AT LAUNCH • Colorado — 2021 International Plumbing Code with state amendments • California — 2025 California Plumbing Code (2024 UPC base) More states are on the way. Whether you're roughing in a DWV stack, sizing water lines, or checking trap-arm limits, PipeHound points you at the right section in seconds. PipeHound is a reference aid — always verify against the code as adopted in your jurisdiction and confirm with your AHJ before performing work. Free to use. No account, no signup. Answers are generated by our self-hosted model — see the in-app privacy disclosure for what's sent.

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The developer, Nathanial Smalley, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Nathanial Smalley
Size
  • 3.5 MB
Category
  • Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Change Optics AI LLC
  • Privacy Policy

    • More by Nathanial Smalley