# WinFab - Sheet Metal Ductulator

> Sheet metal duct sizing calculator for HVAC professionals. (iPhone/iPad app by pasquale dipaola.)

- Source: https://appshunter.io/ios/app/winfab-sheet-metal-ductulator/id1212427529 (this page in markdown: same URL + `.md`)
- Developer: [pasquale dipaola](https://appshunter.io/developer/986252466)
- Category: Business, Utilities
- Price: $3.99
- Rating: 4.80/5 from 6 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 12 MB
- Languages: American English
- Released: 2017-03-08
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/winfab-sheet-metal-ductulator/id1212427529/reviews.md

## What is WinFab?

Duct sizing Calculator.

## Key features

- Duct sizing calculation
- Airflow determination
- Pressure drop calculation
- HVAC system support
- Sheet metal design

## Chart rankings

- #26 in Top Paid · Business (US App Store)

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/winfab-sheet-metal-ductulator/id1212427529/reviews.md

### 4/5 — Looks good but...

*2023-01-03*

This app is good and is accurate to my paper version.

Would prefer it if the app was in metric/SI units, also it would be more accurate to be able to type in required units. If these points were available then I would promote this on my LinkedIn page.

### 4/5 — Simple

*2019-01-23*

Worth $4.00. You need to pinch to zoom. Would be nice to pan. But it works. Always have phone in pocket in tight dark work areas. Most times do not have cardboard ductulator.  Gave it 4. Add pan.......it gets a 5.

## Frequently asked questions about WinFab

### What is WinFab used for?

WinFab is a duct sizing calculator designed to help professionals determine the correct dimensions for sheet metal ductwork in HVAC systems. It assists in calculating airflow and pressure drop.

### How much does WinFab cost?

WinFab is a paid application, priced at $3.99. There are no in-app purchases or subscriptions required.

### What devices support WinFab?

WinFab is available for iPhone, iPad, and iPod devices. It is designed for iOS users.

### Is WinFab suitable for all ages?

WinFab has an age rating of 4+, making it appropriate for a wide range of users, though its professional nature targets adults in specific industries.

### How often is WinFab updated?

WinFab was last updated on March 8, 2017, with version 1.0. Further update frequency is not specified.

### What is the user rating for WinFab?

WinFab has received a high rating of 4.8 stars based on 6 user reviews, indicating strong user satisfaction.

### Does WinFab have ads?

No, WinFab does not contain advertisements. As a paid application, it offers an ad-free experience.

## Version history (last 1 release)

### 1.0 — 2017-03-08

This update from Apple will improve the functionality of this app. No new features are included.

## Apps similar to WinFab

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [SMACNA Duct-U-Lator](https://appshunter.io/ios/app/smacna-duct-u-lator/id6702024229) | 5.0 (1) | Free | Business |
| [TrueFlow HVAC Air Flow](https://appshunter.io/ios/app/trueflow-hvac-air-flow/id1518628173) | 5.0 (4) | Free | Business |
| [American Standard® Technician](https://appshunter.io/ios/app/american-standard-technician/id1525531804) | 4.8 (81) | Free | Business |
| [LaserCalc Mobile](https://appshunter.io/ios/app/lasercalc-mobile/id6502254919) | 3.4 (5) | Free | Business |

## More apps by pasquale dipaola

- [AI Ductulator](https://appshunter.io/ios/app/ai-ductulator/id986252467)
- [WinFab-Sheet Metal Estimation](https://appshunter.io/ios/app/winfab-sheet-metal-estimation/id998320398)
- [WinFab - Sheet Metal Order](https://appshunter.io/ios/app/winfab-sheet-metal-order/id1231396080)

All apps by pasquale dipaola: https://appshunter.io/developer/986252466

## Related topics

[pt ductulator](https://appshunter.io/ios/topics/pt-ductulator) · [ductulator](https://appshunter.io/ios/topics/ductulator) · [ductulator duct sizing](https://appshunter.io/ios/topics/ductulator-duct-sizing) · [duct](https://appshunter.io/ios/topics/duct) · [free ductulator](https://appshunter.io/ios/topics/free-ductulator) · [ductulator duct sizer](https://appshunter.io/ios/topics/ductulator-duct-sizer) · [duct calculator](https://appshunter.io/ios/topics/duct-calculator) · [sheet metal pros](https://appshunter.io/ios/topics/sheet-metal-pros)

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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 2026-08-26.*