# HVAC Calc – Duct & Airflow — user reviews

> 2 indexed App Store user reviews of HVAC Calc by NURDAN ARI, rated 5.00/5 from 2 ratings.

- Source: https://appshunter.io/ios/app/hvac-calc-duct-and-airflow/id6751240306/reviews
- App overview in markdown: https://appshunter.io/ios/app/hvac-calc-duct-and-airflow/id6751240306.md

## Most critical reviews (2 lowest-rated)

### 5/5 — Excellent HVAC Tool for On-Site Use

*2025-09-07*

I’m really impressed with HVAC Calc – Duct & Airflow—a true field-ready app for engineers and technicians. The duct sizing tool is spot-on: just input your airflow and velocity, and it instantly gives you both circular and rectangular dimensions. The airflow and friction loss calculators (using Darcy-Weisbach formula) are fast and accurate—even if you’re working completely offline on the job site. Love the PDF report generator for sharing neat, professional summaries. Compact, reliable, and highly recommended for anyone needing quick HVAC calculations.

### 5/5 — duct airflow calculator app

*2025-08-24*

duct airflow calculator app

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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 2026-06-10.*