Easy with amazing features
Estimated from the grossing charts of Oct 21, 2026 in the 53 countries we track, and ratings growth on the App Store.
From our daily snapshots of every grossing chart.
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Measured from the store, not estimated.
From the latest 158 reviews on the United States App Store, Aug 4, 2011 to Nov 26, 2025: 13% are 1 or 2 stars. Open a theme to read what people wrote.
5 of the 1 and 2 star reviews.
★★★★★ This piece of crap is useless and if I could get my money back I would.
★★★★★ Wish I could get my money back.
5 of the 1 and 2 star reviews.
★★★★★ May be a good calculator for estimating but not for on job use layouts.
★★★★★ Roof calculations for hip rafters are wrong.
★★★★★ This piece of crap is useless and if I could get my money back I would.
24 of the 4 and 5 star reviews.
★★★★★ Easy with amazing features
★★★★★ This construction app is user-friendly and makes my job much easier.
★★★★★ The interface is very intuitive and the knowledge that has gone into this is impressive but there is something there that I don't like.
16 of the 4 and 5 star reviews.
★★★★★ What a helpful quick guide for verification of common elements of building.
★★★★★ Very helpful app for most basic calculations for construction
★★★★★ So many fantastic calculators- very helpful!!!
7 of the 4 and 5 star reviews.
★★★★★ Love this little number cruncher. It works. Also its devs crafted it around a smart, informative privacy policy — I don't have to worry about client dimensions getting peeked on by nosy tech savvy and $$$$ neighbors.…
★★★★★ This is a great app for any carpenter or DIY.
★★★★★ Works well and has much handy information at my finger tips.
6 of the 4 and 5 star reviews.
★★★★★ What a helpful quick guide for verification of common elements of building.
★★★★★ Easy to use fast lots of cool features.
★★★★★ Very good app for quick estimation of projects.
4 of the 4 and 5 star reviews.
★★★★★ The interface is very intuitive and the knowledge that has gone into this is impressive but there is something there that I don't like.
★★★★★ Like the new update interface is much better
★★★★★ The calculator alone is worth the price of admission with the functionality of the construction master but with a smoother user interface for fraction input.
Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.
Latest reviews, United States App Store.
Easy with amazing features
This construction app is user-friendly and makes my job much easier.
May be a good calculator for estimating but not for on job use layouts.
This is a must have app. Use it as my main calculator and it is great to work with. Thank You!
Wall calculation. I am calculating a 16x8 foot wall framing 2x4 and 16 inch center and it says I need 150 studs. That result can’t be right.
The best
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Released May 17, 2011. Current version shipped Feb 4, 2022.
Prices, ranks and reviews are per country. Revenue above is already worldwide.