HVAC-calculator Downloads & RevenueHVAC-calculator · App Store
Not in any tracked top chart right now.
Updated 1 Nov 2026 · rankings refresh through the day
DeveloperTrond Rossvoll
CategoryProductivity
Price6.99 CAD
Released
Rating★ 0.0 (0)
Version3.0
Age rating4+
First seen by us
10 Oct 2026
10 Oct 2026Installs (est.)100+ worldwide
📈Dropped out of every chart we track🆕First spotted by AppInsider📦Version 3.0🆕Released on the App Store
Full timeline · 4 events
- 📈HVAC-calculator dropped out of every chart we trackLast seen 11 Oct
- 🆕HVAC-calculator first spotted by AppInsider#35 in Top Paid · Productivity · Canada
- 📦HVAC-calculator version 3.0Update for iOS/iPadOS 16 and later
- 🆕HVAC-calculator released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
HVAC-calculator on the App Store
App details
App ID
602391404
Publisher
Trond Rossvoll
On the store since
Mar 2013
13 years on the store
Minimum OS
iOS 16.0+
iPhone 8 and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN NB
Size
14 MB
Also listed in
Utilities
HVAC-calculator downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About HVAC-calculator
HVAC Calculator is an app that performs many calculations that are useful to have available for anyone working with or have interest in HVAC and energy use in buildings.
The app performs many of the calculations that you never remember the formulas for when you need them for quick calculations, for example in a meeting or out on the construction site. Many of the calculations can also be a bit difficult to calculate with a normal calculator. Now you can perform these calculations easily on your iPhone/iPad.
The app is universal, so you only have to buy it once to use it on both iPhone and iPad.
The app helps you calculate all this and more:
-SFP from measured/design fan power and airflow
-SFP at reduced airflow for VAV ventilation
-SFP at design conditions or maximum performance for VAV ventilation
-Temperature efficiency of heat recovery
-Temperature after heat recovery unit (HRU) in air handling unit (AHU)
-Temperature of exhaust air from air handling unit after heat recovery
-Actual temperature efficiency of heat recovery when the exhaust temperature is limited to minimum 5°C for reuse as frost free garage ventilation
-Air velocity in ducts with known dimensions and airflow
-Maximum airflow in a duct with dimensions and maximum air velocity as specified requirements
-Dimensions of rectangular and circular spiral ducts for specified air flow and velocity requirements
-Pressure drop in Pa/m for rectangular and circular spiral ducts
-Equivalent diameters for rectangular ducts
-Hydraulic diameter for rectangular ducts
The app performs many of the calculations that you never remember the formulas for when you need them for quick calculations, for example in a meeting or out on the construction site. Many of the calculations can also be a bit difficult to calculate with a normal calculator. Now you can perform these calculations easily on your iPhone/iPad.
The app is universal, so you only have to buy it once to use it on both iPhone and iPad.
The app helps you calculate all this and more:
-SFP from measured/design fan power and airflow
-SFP at reduced airflow for VAV ventilation
-SFP at design conditions or maximum performance for VAV ventilation
-Temperature efficiency of heat recovery
-Temperature after heat recovery unit (HRU) in air handling unit (AHU)
-Temperature of exhaust air from air handling unit after heat recovery
-Actual temperature efficiency of heat recovery when the exhaust temperature is limited to minimum 5°C for reuse as frost free garage ventilation
-Air velocity in ducts with known dimensions and airflow
-Maximum airflow in a duct with dimensions and maximum air velocity as specified requirements
-Dimensions of rectangular and circular spiral ducts for specified air flow and velocity requirements
-Pressure drop in Pa/m for rectangular and circular spiral ducts
-Equivalent diameters for rectangular ducts
-Hydraulic diameter for rectangular ducts
Latest updates
3.0
Update for iOS/iPadOS 16 and later
