Ductulator - Duct Sizing

Name: Ductulator - Duct Sizing
Rating: 4.7 (316 reviews)
Author: Wassim Murr

by Wassim Murr

iPhone · iPad

Active Last checked 31 Jul 2026

App Store ↗

Quick verdict

What it is: Store information collected; independent summary not yet available.
At a glance: $3.99

Categories and search queries

Official categories

Productivity
Utilities

AppCorpus categories

Key functions

Function	Availability	Access	Scope	Evidence
Family Sharing	Yes	Unknown	App Store	Store published

Screens

No screenshots collected yet.

Pricing & paywalls

App Store

Shown for US

Price: $3.99

Last verified 31 Jul 2026

Ratings & reviews

App Store

Shown for US

4.7 316 ratings · App Store

5/5Options
I love the App. It’s easy to use I just wish there were more options like selecting round or square duct as opposed to just only using Cfm.

AS2SCHLAX · 31 Jul 2026
1/5Not what I was looking for
Update- I got your email. I understand the way you have the app set up I just didn’t understand it before I bought the app. The function of your app is pretty much pointless for anything I need it for. If I want to size a traditional residential HVAC duct system this does not help. Your app mostly seems to be used to figure out numbers just for fun. Who cares what the velocity of 500 CFM going through 6 inch flex? You can’t get 500 CFM through 6 inch flex anyway so why would you want to know that number? End Update. You need to be able to pick 6 inch flex and then the app tell you how many CFM can go through that. The way this is set up now is just silly. I like the idea you can get velocity, but you need to know how many CFM goes through all the different sizes. Now I have to buy another app.

Brett88 · 31 Jul 2026
4/5Solid app, not quite 5/5
The only thing holding the app back IMO is the omission of flat oval ducts. They’re uncommon, but it’s the only thing the app can’t do that has caused me to have to reach for the less convenient methods.

NickH110110 · 31 Jul 2026
5/5Don't be afraid to invest in this very useful tool.
Excellent application. Don't be afraid to invest in this very useful tool. The application perfectly meets its objective. I recommend it 100%

Enmanuel Sánchez Acosta · 31 Jul 2026
5/5Best duculator for IPhone
Very easy to use in the field. I use it everyday when measuring out duct runs !!

Nicci381 · 31 Jul 2026

Privacy & accessibility

App Store

Privacy

Data Not Collected Developer declared

Accessibility

No accessibility labels collected yet.

Versions

App Store

1.0
1.1
Changes: -Minor bug fixes -Improved IU Contrast
1.5
* User's unit preferences are not saved for future launches. * Implemented dark mode for iOS 13 and later versions. * Performance improvements.
2.0
Major Update based on users feedback: Users can now click on a proposed duct size to open a popup window showing the resulting pressure drop and velocity. The user can then adjust the flow rate and duct sizes, the pressure drop and velocity will then update according to the user input.
2.0.1
Users can now click on a proposed duct size to open a popup window showing the resulting pressure drop and velocity. The user can then adjust the flow rate and duct sizes, the pressure drop and velocity will then update according to the user input.
2.1.0
Minor bug fixes
2.2.0
I-P / SI switch added. Bug fixes related to increasing the flow-rate in the ductulator mode.
2.2.1
-improved localization
2.2.2
Various options and features added!
3.0
Major update! UI improvements, redesigned Duct Sizing Page, and various added functionalities.
3.1
- Air flow rate L/s unit now available in the settings menu. - Improved UI / UX
3.1.1
We're always working on various bug fixes and improvements!
3.3
We're always working on various improvements and new features! Introducing FLEX duct sizing, including correction factors for compressed flexible ducts.
3.3.1
We're always working on various improvements and new features! Introducing FLEX duct sizing, including correction factors for compressed flexible ducts.
3.3.4
We're always working on various improvements and new features! This update includes minor bug fixes and UI improvements.
3.3.5
We're always working on various improvements and new features! This update includes minor bug fixes and UI improvements.
3.3.8
We're always working on various improvements and new features!
3.3.9
We're always working on various improvements and new features!
3.4
We're always working on various improvements and new features!
3.5 · 24 Mar 2026
* UI Improvements and minor bug fixes.

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Availability by market

No LIVE observation for ES yet.

Data quality & evidence

Page completeness: Live store listing
Last verified: 31 Jul 2026
Sources: App Store

Independent summary has not been published yet.
Screenshots: not yet collected

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Compare this app with its closest alternatives.

View JSON

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          "author": "AS2SCHLAX",
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