Ductulator Downloads & RevenueDuctulator - Duct Sizing · App Store
Ductulator - Duct Sizing is #48 in Productivity Paid in United States and charting in 5 of 30 countries we track.
Updated 9 Nov 2026 · rankings refresh through the day
24 Sep 2026Ductulator - Duct Sizing update history & changes
Last change · 21 events since 13 Aug 2019Full timeline ↓Full timeline · 21 events
- 📈Ductulator - Duct Sizing entered the top 10Top Paid · Productivity · PH
- 📈Ductulator - Duct Sizing entered the top 10Top Paid · Productivity · ID
- 📈Ductulator - Duct Sizing charting in a new countryIndonesia
- 📈Ductulator - Duct Sizing entered the top 10Top Paid · Productivity · MX
- 📈Ductulator - Duct Sizing charting in a new countryPhilippines
- 📈Ductulator - Duct Sizing entered the top 10Top Paid · Productivity · MY
- 📈Ductulator - Duct Sizing new best rank in the overall chart: #92Top Paid · All Apps · MY
- 📈Ductulator - Duct Sizing entered the top 100 in 2 chartsTop Paid · All Apps · MY · Top Paid · Productivity · ZA
- 📈Ductulator - Duct Sizing charting in a new countrySouth Africa
- 📈Ductulator - Duct Sizing charting in a new countryMalaysia
- 📈Ductulator - Duct Sizing charting in a new countryColombia
- 📈Ductulator - Duct Sizing entered the top 100Top Paid · Productivity · GB
- 📈Ductulator - Duct Sizing charting in a new countryUnited Kingdom
- 📈Ductulator - Duct Sizing entered the top 10Top Paid · Productivity · TH
- 📈Ductulator - Duct Sizing entered the top 100Top Paid · Productivity · CA
- 📈Ductulator - Duct Sizing charting in a new countryCanada
- 🆕Ductulator - Duct Sizing first spotted by AppInsider#28 in Top Paid · Productivity · United States
- 📦Ductulator - Duct Sizing version 3.5* UI Improvements and minor bug fixes.
- 🆕Ductulator - Duct Sizing released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Productivity PaidDuctulator - Duct Sizing at a glance
AI summary written from our chart and store data, 2026-11-07. It can be wrong: check the numbers above.
A specialized HVAC utility for engineers and technicians to calculate duct dimensions using friction or velocity methods. The app holds strong paid productivity rankings in Thailand (#4) and the Philippines (#13), indicating significant regional traction compared to its lower position in the US market (#49).
Similar apps: HVAC Duct Sizing Calculator, Ductulator Pro, Airflow Calculator
Ductulator - Duct Sizing on the App Store
App details
Ductulator - Duct Sizing downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where Ductulator - Duct Sizing's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
How this is calculated
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | ProductivityPaid | #48 |
 Thailand | ProductivityPaid | #13 |
 Mexico | ProductivityPaid | #184 |
 Philippines | ProductivityPaid | #110 |
 Malaysia | ProductivityPaid | #104 |
Apps near Ductulator - Duct Sizing on the chart
Productivity Paid, around #48.
Ratings
App Store, worldwide.
Review momentum
ⓘ How we measure thisReview momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Ductulator - Duct Sizing
From the 15 most recent App Store reviews in the US.
Users appreciate the app's utility for field duct sizing and its replacement of physical tools, but criticize limited input options like missing flat oval or flex duct support. Complaints also include unexpected subscription charges and bugs in recent updates that hinder basic functionality.
Mixed (53% of recent reviews give 4–5 stars). People like it for being easy to use, and its features and content. The main complaints are about price and subscriptions, and recent updates. Recent reviews are more negative than earlier ones.
What people like
- Ease of use: “Very easy to use in the field”
- Features & content: “Don't be afraid to invest in this very useful tool”
- Useful: “Don't be afraid to invest in this very useful tool”
Common complaints
- Price & subscription: “I downloaded the app for free then was charged recently for $4.26 when I never signed up for a subscription or anything”
- Updates: “This new update version is not good they should go back to the original version!”
About Ductulator - Duct Sizing
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.
Latest updates
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