# AirFlow ProCalc — HVAC Duct Layout

> HVAC Duct Layout (iPhone/iPad app by Christopher Brown.)

- Source: https://appshunter.io/ios/app/airflow-procalc/id6749831441 (this page in markdown: same URL + `.md`)
- Developer: [Christopher Brown](https://appshunter.io/developer/1822667807)
- Category: Productivity, Education
- Price: $9.99
- Age rating: 4+
- Requires: iOS 15.1 · 27 MB
- Languages: English
- Released: 2025-08-13
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/airflow-procalc/id6749831441/reviews.md

## What is AirFlow ProCalc?

AirFlow ProCalc is the ultimate duct sizing tool for HVAC professionals. Whether you’re in the field or at the desk, this app makes duct calculations fast, accurate, and easy.

Designed by HVAC techs for HVAC techs, AirFlow ProCalc helps you size round and rectangular ducts instantly, with real-time updates to airflow, velocity, and friction loss as you adjust. You can even toggle between smooth metal and internally lined ducts for accurate results in any scenario.

Features:

    Automatic duct sizing for round & rectangular ducts

    Real-time velocity & static loss calculations

    Manual size adjustments with instant recalculation

    Smooth metal or internally lined duct options

    CFM, velocity, or static loss–based sizing

    Clean, easy-to-use interface that works great in the field

Perfect for load calculations, system design, and quick checks on service calls—AirFlow ProCalc saves you time and ensures precision every time.


## Version history (last 1 release)

### 1.0 — 2025-08-13

No release notes.

## More apps by Christopher Brown

- [HVAC/R AI Pro](https://appshunter.io/ios/app/hvacr-ai-pro/id6747730624)

All apps by Christopher Brown: https://appshunter.io/developer/1822667807

## Related topics

[airflow procalc](https://appshunter.io/ios/topics/airflow-procalc) · [ductwork](https://appshunter.io/ios/topics/ductwork)

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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.*