---
title: "Ductulator - Duct Sizing - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "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. •"
---

# Ductulator - Duct Sizing — United States
> HVAC Duct Design Calculator

![Ductulator App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/d4/81/19/d48119ef-9d4c-c9e9-cb43-36a973dbb5f2/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [Wassim Murr](https://apptail.io/developer/wassim-murr-Zpjb)
**Category:** Productivity
**Rating:** 4.7/5 (275 ratings)
**Price:** Free
**Bundle ID:** com.welmurr.Ductulator
**Store:** Apple App Store
**Country:** United States
**Version:** 3.5 (released 2026-03-24)
**Original Release:** 2019-08-13
**Languages:** Spanish, French, English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1474939475)
**AppTail Page:** [https://apptail.io/app/ductulator-duct-sizing-LJvb/united-states](https://apptail.io/app/ductulator-duct-sizing-LJvb/united-states)

## Ductulator Description
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.

## Ductulator Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/9c/6c/f0/9c6cf02b-c175-0ac2-efa5-aa7232e0e1b6/d1b41baf-df45-4901-b122-8a2ef86767d1_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00284th_generation_U0029_-_2021-03-19_at_21.09.52.png/2048x2732.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/92/98/aa/9298aa7b-19d6-0718-1733-fe016fb6b3e3/8f64e344-7d51-4101-8f41-23f2ac883d2c_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00284th_generation_U0029_-_2021-03-19_at_21.09.57.png/2048x2732.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/98/27/9e/98279e2b-02ed-39a5-f6d1-a27f6c765fa5/823e2187-c213-4f18-8c4f-ff675bc2f386_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00284th_generation_U0029_-_2021-03-19_at_21.10.36.png/2048x2732.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/f6/3e/24/f63e246a-3052-2086-4f8e-92f2c0c41f49/46a00210-fee4-4f93-af29-204dd0df7765_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00284th_generation_U0029_-_2021-03-19_at_21.10.31.png/2048x2732.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/a2/d1/d9/a2d1d954-8cbe-7ee3-640f-178fdd2faa8f/3250599e-cf34-4d99-a10f-44bb2c44be68_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00284th_generation_U0029_-_2021-03-19_at_21.11.21.png/2048x2732.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/20/8a/1f/208a1f8e-8157-9166-1a4a-6f77e1313b67/97603c98-ef54-4f32-9088-6b4c18a78ce7_Simulator_Screen_Shot_-_iPad_Pro__U002812.9-inch_U0029__U00284th_generation_U0029_-_2021-03-19_at_21.10.53.png/2048x2732.png)

## Ductulator Rating Breakdown in United States
- 5 stars: 243 (88%)
- 4 stars: 12 (4%)
- 3 stars: 7 (3%)
- 2 stars: 3 (1%)
- 1 stars: 10 (4%)

## Ductulator Reviews in United States

### *---- "Ductculator"
This new update version is not good they should go back to the original version!
-- don’ likeit, 2024-12-30

### ***-- "Pretty useful"
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.
-- Aeco1195, 2024-09-18

### **--- "It’s ok at best"
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
-- abc123abc bay you and me grill, 2024-03-07

### ***** "Don'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, 2023-12-27

### ***-- "Needs work"
The new flex option isn’t working properly.
-- ShortMag270, 2023-10-27

### ****- "Let me reverse lookup"
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.
-- ProbablyIan, 2023-10-26

### ***-- "No Flex in duct calcs"
Sadly, $2.99 spend, to discover it’s useless to me, without having the option to select “Flex” in duct calculations
-- Das Keep, 2023-09-25

### ***** "Options"
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, 2023-04-07

### ***** "It’s a must have"
I get to retire my 25 year old Ductulator
-- Vic sr, 2021-08-06

[View all Ductulator reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=reviews)


## Ductulator Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Thailand | Productivity | #4 |
| Top Paid | Saudi Arabia | Productivity | #15 |
| Top Paid | Canada | Productivity | #27 |
| Top Paid | Mexico | Productivity | #37 |
| Top Paid | United States | Productivity | #48 |
| Top Paid | Thailand | Overall | #50 |
| Top Paid | Dominican Republic | Productivity | #67 |
| Top Paid | Philippines | Productivity | #94 |
| Top Paid | Malaysia | Productivity | #111 |
| Top Paid | Ecuador | Productivity | #125 |
| Top Paid | Saudi Arabia | Overall | #170 |
| Top Paid | Lebanon | Productivity | #187 |
| Top Paid | Colombia | Productivity | #191 |
| Top Paid | Pakistan | Productivity | #205 |
| Top Paid | Kuwait | Productivity | #219 |
| Top Paid | Singapore | Productivity | #226 |
| Top Paid | Chile | Productivity | #266 |
| Top Paid | Azerbaijan | Productivity | #279 |
| Top Paid | Hong Kong SAR China | Productivity | #281 |
| Top Paid | India | Productivity | #285 |
| Top Paid | Portugal | Productivity | #294 |
| Top Paid | United Arab Emirates | Productivity | #294 |
| Top Paid | Egypt | Productivity | #308 |
| Top Paid | Indonesia | Productivity | #328 |
| Top Paid | Taiwan | Productivity | #329 |
| Top Paid | Canada | Overall | #396 |
| Top Paid | South Africa | Productivity | #397 |
| Top Paid | Greece | Productivity | #420 |
| Top Paid | Mexico | Overall | #426 |
| Top Paid | Australia | Productivity | #441 |
| Top Paid | Israel | Productivity | #442 |
| Top Paid | Ireland | Productivity | #475 |
| Top Paid | New Zealand | Productivity | #485 |

## Ductulator Discovered Keywords
- ductulator duct sizing
- ductulator

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## Ductulator Available In
- [United States](https://apptail.io/app/ductulator-duct-sizing-LJvb/united-states)
- [Thailand](https://apptail.io/app/ductulator-duct-sizing-LJvb/thailand)
- [Canada](https://apptail.io/app/ductulator-duct-sizing-LJvb/canada)
- [Mexico](https://apptail.io/app/ductulator-duct-sizing-LJvb/mexico)
- [India](https://apptail.io/app/ductulator-duct-sizing-LJvb/india)
- [Malaysia](https://apptail.io/app/ductulator-duct-sizing-LJvb/malaysia)
- [Colombia](https://apptail.io/app/ductulator-duct-sizing-LJvb/colombia)
- [United Kingdom](https://apptail.io/app/ductulator-duct-sizing-LJvb/united-kingdom)
- [Lebanon](https://apptail.io/app/ductulator-duct-sizing-LJvb/lebanon)
- [Singapore](https://apptail.io/app/ductulator-duct-sizing-LJvb/singapore)
- [Australia](https://apptail.io/app/ductulator-duct-sizing-LJvb/australia)
- [Indonesia](https://apptail.io/app/ductulator-duct-sizing-LJvb/indonesia)
- [Brazil](https://apptail.io/app/ductulator-duct-sizing-LJvb/brazil)
- [Philippines](https://apptail.io/app/ductulator-duct-sizing-LJvb/philippines)
- [Japan](https://apptail.io/app/ductulator-duct-sizing-LJvb/japan)
- [Czechia](https://apptail.io/app/ductulator-duct-sizing-LJvb/czechia)
- [France](https://apptail.io/app/ductulator-duct-sizing-LJvb/france)
- [United Arab Emirates](https://apptail.io/app/ductulator-duct-sizing-LJvb/united-arab-emirates)
- [Dominican Republic](https://apptail.io/app/ductulator-duct-sizing-LJvb/dominican-republic)
- [New Zealand](https://apptail.io/app/ductulator-duct-sizing-LJvb/new-zealand)
- [Panama](https://apptail.io/app/ductulator-duct-sizing-LJvb/panama)
- [Pakistan](https://apptail.io/app/ductulator-duct-sizing-LJvb/pakistan)
- [Kuwait](https://apptail.io/app/ductulator-duct-sizing-LJvb/kuwait)
- [Portugal](https://apptail.io/app/ductulator-duct-sizing-LJvb/portugal)
- [Russia](https://apptail.io/app/ductulator-duct-sizing-LJvb/russia)
- [Egypt](https://apptail.io/app/ductulator-duct-sizing-LJvb/egypt)
- [Türkiye](https://apptail.io/app/ductulator-duct-sizing-LJvb/turkey)
- [Taiwan](https://apptail.io/app/ductulator-duct-sizing-LJvb/taiwan)
- [Italy](https://apptail.io/app/ductulator-duct-sizing-LJvb/italy)
- [Peru](https://apptail.io/app/ductulator-duct-sizing-LJvb/peru)
- [Poland](https://apptail.io/app/ductulator-duct-sizing-LJvb/poland)
- [Romania](https://apptail.io/app/ductulator-duct-sizing-LJvb/romania)
- [Saudi Arabia](https://apptail.io/app/ductulator-duct-sizing-LJvb/saudi-arabia)
- [Sweden](https://apptail.io/app/ductulator-duct-sizing-LJvb/sweden)
- [Ukraine](https://apptail.io/app/ductulator-duct-sizing-LJvb/ukraine)
- [Uzbekistan](https://apptail.io/app/ductulator-duct-sizing-LJvb/uzbekistan)
- [Vietnam](https://apptail.io/app/ductulator-duct-sizing-LJvb/vietnam)
- [South Africa](https://apptail.io/app/ductulator-duct-sizing-LJvb/south-africa)
- [Lithuania](https://apptail.io/app/ductulator-duct-sizing-LJvb/lithuania)
- [Argentina](https://apptail.io/app/ductulator-duct-sizing-LJvb/argentina)
- [Austria](https://apptail.io/app/ductulator-duct-sizing-LJvb/austria)
- [Azerbaijan](https://apptail.io/app/ductulator-duct-sizing-LJvb/azerbaijan)
- [Belgium](https://apptail.io/app/ductulator-duct-sizing-LJvb/belgium)
- [Bulgaria](https://apptail.io/app/ductulator-duct-sizing-LJvb/bulgaria)
- [Belarus](https://apptail.io/app/ductulator-duct-sizing-LJvb/belarus)
- [Switzerland](https://apptail.io/app/ductulator-duct-sizing-LJvb/switzerland)
- [Chile](https://apptail.io/app/ductulator-duct-sizing-LJvb/chile)
- [China](https://apptail.io/app/ductulator-duct-sizing-LJvb/china)
- [Cyprus](https://apptail.io/app/ductulator-duct-sizing-LJvb/cyprus)
- [Germany](https://apptail.io/app/ductulator-duct-sizing-LJvb/germany)
- [Denmark](https://apptail.io/app/ductulator-duct-sizing-LJvb/denmark)
- [Algeria](https://apptail.io/app/ductulator-duct-sizing-LJvb/algeria)
- [Ecuador](https://apptail.io/app/ductulator-duct-sizing-LJvb/ecuador)
- [Estonia](https://apptail.io/app/ductulator-duct-sizing-LJvb/estonia)
- [Spain](https://apptail.io/app/ductulator-duct-sizing-LJvb/spain)
- [Finland](https://apptail.io/app/ductulator-duct-sizing-LJvb/finland)
- [Greece](https://apptail.io/app/ductulator-duct-sizing-LJvb/greece)
- [Hong Kong SAR China](https://apptail.io/app/ductulator-duct-sizing-LJvb/hong-kong)
- [Croatia](https://apptail.io/app/ductulator-duct-sizing-LJvb/croatia)
- [Hungary](https://apptail.io/app/ductulator-duct-sizing-LJvb/hungary)
- [Ireland](https://apptail.io/app/ductulator-duct-sizing-LJvb/ireland)
- [Israel](https://apptail.io/app/ductulator-duct-sizing-LJvb/israel)
- [South Korea](https://apptail.io/app/ductulator-duct-sizing-LJvb/south-korea)
- [Kazakhstan](https://apptail.io/app/ductulator-duct-sizing-LJvb/kazakhstan)
- [Nigeria](https://apptail.io/app/ductulator-duct-sizing-LJvb/nigeria)
- [Netherlands](https://apptail.io/app/ductulator-duct-sizing-LJvb/netherlands)
- [Norway](https://apptail.io/app/ductulator-duct-sizing-LJvb/norway)

---

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