# PlumbCalc Pro max

> PlumbCalc Pro max (iPhone/iPad app by Guanghe Xu (tianjin) Digital Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/plumbcalc-pro-max/id6763897308 (this page in markdown: same URL + `.md`)
- Developer: [Guanghe Xu (tianjin) Digital Technology Co., Ltd](https://appshunter.io/developer/1895336115)
- Category: Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English
- Released: 2026-04-30
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/plumbcalc-pro-max/id6763897308/reviews.md

## What is PlumbCalc Pro max?

PlumbCalc Pro max is a professional offline plumbing engineering toolkit for contractors, mechanical engineers, designers, and field inspectors.

Plan a plumbing job, estimate demand, size pipe runs, calculate flow and friction losses, review drainage capacity, convert flow units, size booster pumps, estimate water heater load, check thermal expansion tank requirements, and keep a pressure test log.

Key Features:
- Project planning dashboard with fixture demand summary and design checks
- Pipe sizing with velocity guidance and standard pipe reference
- Hazen-Williams flow, velocity, head loss and PSI loss calculations
- Fixture unit demand calculator with common WSFU references
- Drainage slope, Manning capacity and DFU reference tables
- Booster pump horsepower, water heater load and expansion tank sizing
- Pressure test log plus plumbing field reference formulas

Designed for quick jobsite checks and early-stage plumbing design review. The app works fully offline.


## Version history (last 2 releases)

### 1.0.1 — 2026-05-01

Updated the app icon with a clearer professional plumbing engineering design. App functionality remains unchanged.

### 1.0 — 2026-05-01

No release notes.

## More apps by Guanghe Xu (tianjin) Digital Technology Co., Ltd

- [WeldSpec Pro](https://appshunter.io/ios/app/weldspec-pro/id6763484882)
- [HydraCalc Pro](https://appshunter.io/ios/app/hydracalc-pro/id6763485334)
- [GearDrive Pro](https://appshunter.io/ios/app/geardrive-pro/id6763485586)
- [AgriFlow Pro](https://appshunter.io/ios/app/agriflow-pro/id6763485593)
- [VentCalc Pro](https://appshunter.io/ios/app/ventcalc-pro/id6763485742)
- [RopeRig Pro](https://appshunter.io/ios/app/roperig-pro/id6763485855)

All apps by Guanghe Xu (tianjin) Digital Technology Co., Ltd: https://appshunter.io/developer/1895336115

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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 2026-05-17.*