Size HVAC ducts instantly using airflow, friction or velocity.
Get accurate duct dimensions in seconds — no charts required.
• Get a range of suitable duct sizes based on friction rate or velocity.
• Get multiple valid duct dimensions instantly.
• Tap on Friction Rate or Velocity to toggle between calculation methods.
• IP and SI units.
• Detailed sizing mode to adjust the duct dimensions and air flow rates.
• Supports rectangular, circular and flexible ducts.
• Automatic friction and velocity updates.
Calculations are based on standard air 0.075 lb/ft3 (1.2 kg/m3) in clean galvanized steel or non-metallic flexible ducts.
Any feedback is welcome, and will be the basis for future updates.
Product Positioning & Context
Related Ecosystem & Alternatives
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Deep-Dive FAQs
What is Ductulator - Duct Sizing?
Ductulator - Duct Sizing is a digital product or tool described as: Wassim Murr
Where did Ductulator - Duct Sizing originate?
Data for Ductulator - Duct Sizing was aggregated directly from the Apple App Store community ecosystem, representing raw developer and early-adopter sentiment.
When was Ductulator - Duct Sizing publicly launched?
The initial public indexing or launch date for Ductulator - Duct Sizing within our tracked developer communities was recorded on August 13, 2019.
How popular is Ductulator - Duct Sizing?
Ductulator - Duct Sizing has achieved measurable traction, logging over 277 reviews and facilitating 5 recorded discussions or engagements.
Which technical categories define Ductulator - Duct Sizing?
Based on metadata extraction, Ductulator - Duct Sizing is categorized under topics such as: Productivity, Utilities.
What are some commercial alternatives to Ductulator - Duct Sizing?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as localskills.sh, which offers overlapping value propositions.
How does the creator describe Ductulator - Duct Sizing?
The original author or development team describes the product as follows: "Size HVAC ducts instantly using airflow, friction or velocity.
Get accurate duct dimensions in seconds — no charts required.
• Get a range of suitable duct sizes based on friction rate or velocity..."
Community Voice & Feedback
I downloaded the app for free then was charged recently for $4.26 when I never signed up for a subscription or anything. The app is a scam I guess ?
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.
Very easy to use in the field.
I use it everyday when measuring out
duct runs !!
I use it everyday when measuring out
duct runs !!
This new update version is not good they should go back to the original version!
Comes in handy but limits what sizes you can pick. Not sure if it’s a bug but I wanted to see what my friction rate was for 16x25 and I can get the 16 but it skips from 24-26 and that happens often.
Can’t punch in duct size to see what the cfm is very limited on what you can do save your money but it gives you different duct options if that’s what your trying to do
Excellent application. Don't be afraid to invest in this very useful tool. The application perfectly meets its objective. I recommend it 100%
The new flex option isn’t working properly.
Love that it gives you different options for sizing but I wish I could enter a duct size and get a cfm value from it.
Sadly, $2.99 spend, to discover it’s useless to me, without having the option to select “Flex” in duct calculations
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.
I get to retire my 25 year old Ductulator
Discovery Source
Apple App Store Aggregated via automated community intelligence tracking.
Tech Stack Dependencies
No direct open-source NPM package mentions detected in the product documentation.
Media Tractions & Mentions
No mainstream media stories specifically mentioning this product name have been intercepted yet.
Deep Research & Science
No direct peer-reviewed scientific literature matched with this product's architecture.
SaaS Metrics
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.