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apps / 1474939475

Ductulator - Duct Sizing

HVAC Duct Design Calculator

Wassim Murr · Productivity · $3.99 · US storefront

#59 Top Paid Productivity Apps
rating
4.7 ★
ratings
353
updated
Mar 24, 2026

v3.5

released
Aug 13, 2019

visible word pool · 6 words

ductulatorductsizinghvacdesigncalculator

title 24/30 chars · subtitle 27/30 chars

App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of Ductulator - Duct Sizing's pool that are public — the keyword field is not exposed by any API.

from the listing

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…

full listing on the App Store ↗

latest US reviews

★★★★★

BEST D**N APP OUT THERE

You couldn’t find a better app for adjusting duct sizes and just overall use

— Stoken8r

★★★★★

Duct guy

Very helpful

— kooldad5

★★★★★

Not 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…

— Brett88

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Where does it rank? Chart position is one signal — most installs come from keyword search. Check where Ductulator - Duct Sizing ranks for any keyword, free, with the rank checker.

this page is one tool call

mcp · app
{
  "tool": "app",
  "arguments": {
    "appId": 1474939475,
    "countries": [
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    "subtitle": true
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}

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