HVAC Duct Sizing Calculator icon

HVAC Duct Sizing Calculator

Rizvan Adzhoyan

★ 4.6 (75 ratings)

⬇ 1,000+ downloads

Est. actual: 4,790

Free

Released: Apr 3, 2026

IAP: $2.99 per item

Contains ads

Signals

5 this week · 2 positive All of this week's signals →

📈Last 7 days +282 installs — 59% faster than the week before (+177) · 27/day since Oct 7
🏆Among Tools apps top 9% by installs gained this week (1237 peers growing)
⭐Rating steady at ★ 4.64 since Oct 7
🛠Updates quiet · updated 58 days ago
🔁Ownership renamed from ZkDev to Rizvan Adzhoyan · Nov 12, 2026

Installs since launch

+977 installs · +13 ratings since Oct 7

Update history

1.0.6 Sep 16, 2026 · seen Oct 23, 2026

Added a link to TradeTools — the one-app version of this calculator and 61 more, for HVAC, electrical, plumbing, fire protection, solar and carpentry. Nothing else changed.

Only the current version so far — new entries appear as the app ships updates.

HVAC Duct Sizing Calculator is a tools app by Rizvan Adzhoyan with 1,000+ downloads (about 4.8K estimated). +282 installs in the last 7 days. Rated 4.6 from 75 ratings. Released Apr 3, 2026. Install growth, rank history, SDKs and ad networks.

From the store listing: “Manual D duct sizing calculator. ASHRAE sizes, friction rate, round/rect.”