Best DuctCalc alternatives: apps like DuctCalc: HVAC Ductulator

9+ similar apps compared and reviewed

5.0 avg rating
9 free apps
Updated November 2026

Whether you want more options like DuctCalc or a completely different take on the same concept, our curated list of 9+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to DuctCalc

Easy Duct#1

Easy Duct by Iman Alizadeh

Easy Duct Calculator
Editor's Choice
🔧 Utilities
5.0(1 ratings)
Free
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This app calculates air duct sizes for HVAC design. It solves for missing values like airflow or head loss, allowing users to set multiple limits simultaneously. Results are presented with buildable size steps and detailed engineering data, functioning fully offline.