# Journeyman Field Pro Plumbing — Pipe, gas & hydronic calcs

> Pipe, gas & hydronic calcs (iPhone/iPad app by Billy Jackson.)

- Source: https://appshunter.io/ios/app/journeyman-field-pro-plumbing/id6807645128 (this page in markdown: same URL + `.md`)
- Developer: [Billy Jackson](https://appshunter.io/developer/6792427468)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 37 MB
- Languages: American English
- Released: 2026-10-07
- Data updated: 2026-10-10

## What is Journeyman Field Pro Plumbing?

Journeyman Field Pro Plumbing puts a full box of plumbing, gas, and hydronic calculators in your pocket — plus an AI that answers IPC, UPC, and gas-code questions and does the math for you.

FREE calculators (no account, works offline):
• Pipe Volume, Drain Slope, Pipe Offset, Fixture Units
• Flow & Velocity, Pressure to Head, Gas Unit Conversions, Friction Loss

JOURNEYMAN PRO — start a 7-day free trial, then $4.99/month — unlocks:
• Ask the Code — AI answers for IPC / UPC / IFGC that work the math, not just quote the rule
• Water Supply Sizing, DWV Drain Sizing, Vent Sizing, Storm / Roof Drain
• Gas Pipe Sizing, Water Heater Sizing, Expansion Tank, Pump / TDH, Hydronic Sizing
• Plumbing Quick Reference — offline

Built for the field. Every everyday calculator stays free.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://journeyman.ragingrhinogroup.com/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Journeyman Pro | $4.99 | per month |


## Is Journeyman Field Pro Plumbing safe?

Not enough ratings yet to assess Journeyman Field Pro Plumbing.

## Is Journeyman Field Pro Plumbing legit?

Journeyman Field Pro Plumbing has limited verification signals. The AppsHunter Legitimacy Score for Journeyman Field Pro Plumbing is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-08

New app icon — the Journeyman Field Pro plumbing badge.

Everything else is unchanged: 18 plumbing, gas and hydronic calculators, 8 original field guides, and Ask the Code for IPC, UPC, IFGC and NFPA 54 questions.

### 1.0.0 — 2026-09-16

No release notes.

## More apps by Billy Jackson

- [Journeyman Field Pro Electric](https://appshunter.io/ios/app/journeyman-field-pro-electric/id6792427466)

All apps by Billy Jackson: https://appshunter.io/developer/6792427468

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*