Useless
Useless app and a more useless website
Subscription
You have to pay to use the app.
Response from developer
Yes you have to pay and we don’t need cheap users like you
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
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
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Response from developer
Thanks for being fair Igor!
Eng. Fadi Saflo
User friendly and practical
