Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.






0+ iOS apps curated and reviewed
If you already know Ductulator, this is the deeper bench. 0+ ductulator alternative apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of June 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $3.99 | 4.7★ (272) | No | No | Jul 2026 | |
| 2 | $3.99 | 4.8★ (6) | No | No | Jul 2026 | |
| 3 | $0.99 | 5.0★ (1) | No | No | Jul 2026 | |
| 4 | $3.99 | 3.9★ (9) | No | No | Jul 2026 | |
| 5 | Free | 1.9★ (20) | No | Yes | May 2026 | |
| 6 | Free | 5.0★ (1) | No | No | May 2026 | |
| 7 | Free | — | No | No | May 2026 | |
| 8 | Free | 4.7★ (3.8K) | No | Yes | Jul 2026 |






Instantly calculate HVAC duct sizes based on airflow, friction rate, or velocity. This tool provides accurate duct dimensions in seconds without needing charts, supporting various duct types and units.


This app calculates the correct dimensions for sheet metal ductwork. It simplifies the process of determining airflow and pressure drop for HVAC systems. Essential for professionals in the sheet metal and HVAC industries.





This utility app assists HVAC design professionals in calculating duct sizes. It goes beyond basic calculations to provide a list of suitable duct sizes based on design criteria, offering an intuitive interface for precise adjustments.


This application serves as a duct sizing calculator for HVAC professionals and enthusiasts. It provides quick and accurate calculations for duct dimensions based on various parameters.


This utility app calculates duct dimensions and air velocity using two methods: Equal Friction and Velocity. It supports both round and rectangular ducts, offering precise calculations for HVAC professionals. Offline functionality is available with a subscription.


This utility app helps HVAC professionals and enthusiasts quickly calculate essential airflow metrics for various duct sizes. It provides CFM, FPM, and FL values, simplifying HVAC system design and analysis.




This AI-powered workspace automates various tasks, from research and content generation to coding and presentation creation. It offers tools for drafting documents, building websites, transcribing meetings, and generating images, videos, and audio with simple prompts.


This tool simplifies HVAC duct sizing for professionals. It quickly calculates dimensions for rectangular, round, and oval ducts based on airflow, friction loss, and velocity, ensuring optimal ventilation system performance.


This AI-powered assistant intelligently plans your day, schedules meetings, and manages projects, helping busy professionals and teams get work done faster with fewer interruptions. It automates task reorganization and meeting coordination, freeing up valuable time.


This AI-powered app helps you be more productive at work. Chat with an AI assistant to create content, manage projects, find files, and learn new concepts. It offers voice interaction and expert insights for various tasks.


This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.


This app helps boost productivity and combat procrastination using the Pomodoro technique. It breaks tasks into focused work intervals followed by breaks, ideal for students, professionals, and individuals managing ADHD. Track your progress and stay on task with customizable settings and an intuitive interface.


Easily document floor plans, measurements, photos, and notes on-site. This app allows for cloud-based project access across all devices, ensuring your data is backed up and synchronized. Streamline your workflow and improve efficiency for various trade professionals and DIYers.


This app combines a Pomodoro timer with task management to boost productivity. Organize tasks, set reminders, and track your focused work sessions with detailed reports. Syncs across all your devices for seamless management.


This app provides professional HVAC duct sizing and psychrometric calculations in a single tool. It offers detailed calculations for various duct types and materials, along with comprehensive humid air property analysis. Designed for HVAC professionals, it replaces traditional ductulators with accurate digital functionality.


Streamline your home professional business with an all-in-one toolkit. Manage projects, create estimates and invoices, communicate with clients, and visualize designs with AI-powered tools and 3D floor plans. Get paid faster and win more jobs.


This app allows HVAC professionals to quickly and accurately size new ducts or calculate the performance of existing ones. It supports both round and rectangular ductwork, offering precise calculations through direct entry or intuitive sliders. The tool provides live updates and outputs key performance metrics.


This app helps you plan your days and manage tasks effectively. It provides tools to set goals, create routines, track progress, and boost overall productivity. Organize your life and achieve your objectives with this structured planner.


This HVAC tool assists professionals with duct sizing calculations based on ASHRAE standards. It supports multiple duct shapes and offers intelligent features to ensure accurate and reliable designs for real-world scenarios.