First release: duct size calculator in imperial (CFM, inches) or metric (m³/h, mm).
Only the current version so far — new entries appear as the app ships updates.
Ductulator: Duct Calculator is a tools app by Foster Apps LLC with 5+ downloads (about 7 estimated). +7 installs in the last 7 days. Released Nov 4, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “HVAC duct size calculator: CFM to round or rectangular duct, friction & velocity”
