--- title: "Ductulator - Duct Sizing — App Overview" url: https://marlvel.ai/apps/com-welmurr-ductulator category: Productivity developer: Wassim Murr platforms: ios rating: 4.7 (277 ratings) pricing: paid report_level: overview generated: 2026-04-19 last_verified: "2026-04-19T01:48:10.616Z" --- > **Key Insight:** The app serves as a convenient field tool for HVAC sizing, though users have noted limitations regarding specific duct shapes and occasional input constraints. | Metric | Value | |--------|-------| | Category | Productivity | | Rating | 4.7 ★ (277) | | Pricing | paid | | Platforms | iOS | | Latest Version (iOS) | 3.5 | | Developer | Wassim Murr | ## What is Ductulator - Duct Sizing? Ductulator is a specialized HVAC utility designed to calculate duct dimensions based on airflow, friction, or velocity. It supports rectangular, circular, and flexible duct types while providing both IP and SI unit conversions for field professionals. ## Key Features - **Calculation Methods**: Allows users to toggle between friction rate and velocity to determine suitable duct dimensions. - **Duct Type Support**: Provides sizing capabilities for rectangular, circular, and flexible ductwork. - **Detailed Sizing Mode**: Enables manual adjustment of duct dimensions and airflow rates for precise project requirements. - **Unit Flexibility**: Supports both IP and SI units to accommodate diverse regional standards. ## Who is it for? HVAC technicians and engineers requiring rapid, on-site duct sizing calculations. ## Links - [App Store](https://apps.apple.com/us/app/ductulator-duct-sizing/id1474939475?uo=2) - [Full Intelligence Report](https://marlvel.ai/apps/com-welmurr-ductulator) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/com-welmurr-ductulator).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*