Ductwise: HVAC Duct Calculator

Name: Ductwise: HVAC Duct Calculator
Author: EasyGoing

LiveEasyGoing65 apps · 7.4M installsToolsFreeIn-app purchases: $3.99 per itemcom.whitefalcon.ductwise

Duct size, CFM, velocity & BTU load for HVAC techs. Works offline.

Alert me ★ Watch Open in Play ↗

Total installs: 0
Installs / day: 0
Rating: —★
Released: 7 Oct 2026
Last update: 8 Oct 2026
Countries: —

Installs per day

gain of the exact counter

12 Oct 2026No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play

All

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
No data collected

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

3 in 1 group

0 Sensitive0 Notable3 Routine

OtherRoutine3

Access to miscellaneous device features that don't fit other categories

Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Read more · all 3 permissions Show less

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Download

Full description

Size ducts in seconds. Ductwise is a duct size calculator for HVAC techs and installers. Enter CFM and friction rate to get the round duct size, the rectangular equivalent and the air velocity. FREE TOOLS - Duct size (round and rectangular), equal-friction method - CFM and airflow: from a duct and its velocity, a sensible load, tonnage or air changes - BTU room load estimate - Duct velocity (fpm), velocity pressure and friction, checked against your own limit BUILT FOR THE JOB SITE - Big, high-contrast numbers you can read at arm's length - Imperial or metric - Set your friction rate and max velocity once; every tool starts from them - Works fully offline, with no ads and no account DUCTWISE PRO (ONE-TIME PURCHASE) - Superheat and subcooling for R-410A, R-32, R-454B, R-22, R-134a, R-407C and R-404A - Size every trunk and branch in one job - Saved jobs and PDF duct schedule Pay once. No subscription. The method is shown on every result, so you can check it against the duct calculator you already carry. Results are guidance; verify against your design standard.

What's new

First release of Ductwise, a duct size calculator for HVAC techs. • Duct size, round and rectangular • CFM, BTU room load and duct velocity • Superheat and subcooling for 7 refrigerants (Pro) • Saved jobs with a PDF duct schedule (Pro) • Imperial or metric, works offline

Similar apps

closest title first, then most installs per day

More similar apps