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Description
DuctCalc.Ca is the iOS offline version of the most popular online ductulator app (ductcalc.ca)
Enjoy using the app with no internet connection when subscribed!
App engineering explanation:
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Equal Friction Method:
Using a predefined static pressure loss per unit of duct length, DuctCalc.Ca Ductulator App calculates the diameter of round duct and the other dimension of rectangular duct. Based on the calculated dimensions, the air velocity will be calculated for both duct shapes and dimensions.
Velocity Method:
Using a predefined air velocity, DuctCalc.Ca Ductulator App calculates the diameter of round duct and the other dimension of a rectangular duct. Based on the calculated dimensions, the static pressure loss will be calculated for both duct shapes and dimensions. Note that unlike conventional ductulators, this ductulator will calculate the dimensions of the rectangular duct based on the given velocity and it then calculates the static pressure loss for the rectangular duct based on the given velocity and dimensions. Most old calculators will only use the given velocity to calculate the diameter of the round duct then it calculates the static pressure loss for the round duct and uses that static pressure to calculate the rectangular duct dimensions which is not the case here for more precise velocity output.
Colebrook equation is used to solve for Darcy's friction factor and calculates the static pressure loss in the duct until it matches the desired input at defined airflow and absolute roughness of the inner material of the duct touching the moving air.
In-App Purchases:
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• With no subscription the app will calculate for an air flow range between (950 and 1100 [cfm]).
To activate full air flow functionality. There are four subscription options: one month, three months, six months and one year.
• All subscription options will activate the "Full Air Flow Functionality" of the duct sizing app for that specific subscription period. The full air flow range is (1 to 500,000 [CFM] or 1 to 235,974 [L/s] in metric units).
• Payment will be charged to iTunes Account at confirmation of purchase.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
Privacy Policy: https://ductcalc.ca/?page=agreement
Terms of Service: https://ductcalc.ca/?page=agreement
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Enjoy using the app with no internet connection when subscribed!
App engineering explanation:
------------------------------
Equal Friction Method:
Using a predefined static pressure loss per unit of duct length, DuctCalc.Ca Ductulator App calculates the diameter of round duct and the other dimension of rectangular duct. Based on the calculated dimensions, the air velocity will be calculated for both duct shapes and dimensions.
Velocity Method:
Using a predefined air velocity, DuctCalc.Ca Ductulator App calculates the diameter of round duct and the other dimension of a rectangular duct. Based on the calculated dimensions, the static pressure loss will be calculated for both duct shapes and dimensions. Note that unlike conventional ductulators, this ductulator will calculate the dimensions of the rectangular duct based on the given velocity and it then calculates the static pressure loss for the rectangular duct based on the given velocity and dimensions. Most old calculators will only use the given velocity to calculate the diameter of the round duct then it calculates the static pressure loss for the round duct and uses that static pressure to calculate the rectangular duct dimensions which is not the case here for more precise velocity output.
Colebrook equation is used to solve for Darcy's friction factor and calculates the static pressure loss in the duct until it matches the desired input at defined airflow and absolute roughness of the inner material of the duct touching the moving air.
In-App Purchases:
-------------------
• With no subscription the app will calculate for an air flow range between (950 and 1100 [cfm]).
To activate full air flow functionality. There are four subscription options: one month, three months, six months and one year.
• All subscription options will activate the "Full Air Flow Functionality" of the duct sizing app for that specific subscription period. The full air flow range is (1 to 500,000 [CFM] or 1 to 235,974 [L/s] in metric units).
• Payment will be charged to iTunes Account at confirmation of purchase.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.
Privacy Policy: https://ductcalc.ca/?page=agreement
Terms of Service: https://ductcalc.ca/?page=agreement
Screenshots
DuctCalc.Ca FAQ
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Is DuctCalc.Ca free?
Yes, DuctCalc.Ca is completely free and it doesn't have any in-app purchases or subscriptions.
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Is DuctCalc.Ca legit?
Not enough reviews to make a reliable assessment. The app needs more user feedback.
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How much does DuctCalc.Ca cost?
DuctCalc.Ca is free.
-
What is DuctCalc.Ca revenue?
To get estimated revenue of DuctCalc.Ca app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
User Rating
1 out of 5
1 ratings in Vietnam
5 star
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Ratings History
DuctCalc.Ca Reviews
Nice Graphical Interface
I like how it draws both duct shapes and shows the relative dimensions graphically in addition to showing the numbers. There is a little charge for using app, but it's the case for any quality app.
Worth the money
The most user friendly app for duct design. It’s very easy to switch between friction and velocity methods and compare both rectangular and round duct dimensions. I’m surprised that there are some reviews here complaining about the little subscription payment they have to pay which is less than the cost of a cup of coffee a week. It’s definitely worth every penny! Strongly recommended
Very useful
The best app I have ever used. Very useful.
Paid app
Can’t do anything until you pay
Unusable without payment
You have to pay for a subscription to use it unless your airflow always hovers around 1000cfm. Just use the website. It’s free and great.
What a joke
You can’t use the free app unless the airflow is within 950-1100 cfm
Reliable and accurate resource to have on the go
What a great app. Been using the web version for a while sizing residential jobs. Nice to now have access to this on an app!! Very accurate. I can tell that a lot of time and effort was put into it’s development. Thank You for creating this !!!
Outrageously Priced
Not sure where this pricing model comes from but it’s almost hilarious where these prices are coming from.
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App Info
- Category
- Utilities
- Publisher
-
Firas Kneifati
- Languages
- English
- Recent release
- 1.2 (5 years ago )
- Released on
- Mar 17, 2019 (5 years ago )
- Also available in
- United States , Canada , Mexico , Vietnam , United Arab Emirates , Türkiye , Sweden , Hong Kong SAR China , Lebanon , Peru , New Zealand , Norway , Netherlands , Malaysia , Portugal , Kazakhstan , Kuwait , South Korea , Philippines , Pakistan , Poland , Italy , Romania , Russia , Saudi Arabia , Singapore , Thailand , Taiwan , Ukraine , Uzbekistan , South Africa , Dominican Republic , Austria , Australia , Azerbaijan , Belgium , Brazil , Belarus , Switzerland , Chile , China , Colombia , Czechia , Germany , Denmark , Japan , Algeria , Ecuador , Egypt , Spain , Finland , France , United Kingdom , Greece , Indonesia , Ireland , Israel , India
- Last Updated
- 3 months ago
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