3+ similar apps compared and reviewed
Whether you want more options like ASHRAE DFDB Lite or a completely different take on the same concept, our curated list of 3+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
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 app brings powerful HVAC duct fitting design capabilities to your tablet. Accurately enter fitting dimensions and preview them in 3D on-site, minimizing errors and rework. Streamline the transfer of field requests to your shop for increased project profitability.
Perform detailed heating and cooling load calculations for residential buildings directly in the field. This app offers comprehensive data for various construction types and allows for unlimited project storage and room-by-room analysis. Reports can be generated and emailed as PDFs or spreadsheets.
