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Last updated on: 2026-06-14
Android Apps > Business > BuildCalc
BuildCalc icon

BuildCalc

2.1.110
42nd Parallel
4.73
191 reviews
5,000+
Downloads
$24.99

BuildCalc - the easiest AND the most advanced construction calculator app.

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BuildCalc by 42nd Parallel is a feature-rich construction calculator that targets professionals with advanced railing, stair, masonry, and layout tools. It holds a strong BUSINESS category presence (top-10 in the US) and maintains a solid 4.73 average rating from 191 reviews, with 5,000+ total downloads and 82 new in the last 30 days.

Pros & Cons

  • Highly specialized, professional-grade calculations for railing, stairs, and masonry
  • Interactive results with automatic updates and easy result saving
  • PDF export of dimensioned drawings for sharing and printing
  • Extensive input customization with unlimited sizes and flexible unit handling
  • Focus on advanced construction scenarios may be less appealing to users seeking simple or general-purpose calculators
  • Higher one-time price point at $24.99 compared to many free or lighter-weight alternatives
  • Some features rely on manual input and domain knowledge to maximize value, which may require a learning curve

About BuildCalc

BuildCalc is a business app developed by 42nd Parallel.

Download Statistics

BuildCalc has been downloaded 9.8 thousand times. In the last 30 days, the app was downloaded 82 times. It is ranked #5 in business.

User Ratings

BuildCalc is rated 4.73 out of 5 stars. The rating is based on 190 ratings.

App Information

BuildCalc costs $24.99 to download. The APK download size is 8.71 MB. The latest version available is 2.1.110. The last update was on February 26, 2026.

Technical Requirements

BuildCalc requires Android 4.0.3+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2011.

Description
What if you could take the best construction calculator and fix it. That’s right ... you love it, it has served you well, and you stand by it ... but could it do more? Could it be easier to use?
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More data about BuildCalc

Price $24.99
Total downloads 9.8 thousand
Recent downloads 82
Rating 4.73 based on 190 ratings
Ranking Top ranked
Version 2.1.110
APK size 8.71 MB
Number of libraries 3
Designed for Android 4.0.3+
Suitable for Everyone
Ads NO ads

App Performance Report

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BuildCalc compared with similar apps

Common keywords of similar apps

Buildcalc Results Function Functions Hip Key Press Size Masonry Drywall Angles Give Length Miter Mode Dimensions Fix Lot Answers Complexity Hassle Baluster Complete Layout Staircase Custom Job Installation Finished Interactive Compound Change Input Switch Automatically Remember Full Sizes Construction Advanced Stair Stringer Calculator App Area Calculation Drawings Fence Roof

Keywords missing from this app

Stairs Calculate Concrete Calculations Volume Quantity Design Material Pro Features Shape Simple Building Materials Tool Calculators Feet Tread Accurate Project Fast Metric Civil Converter Required Contractors Spiral Turn Winder Application Calc Recent Steel Build Measurements Master Roofing Tools Angle

Google Play Rating history and histogram

Rating history
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Downloads over time

Downloads over time
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BuildCalc has been downloaded 9.8 thousand times. Over the past 30 days, it has been downloaded 82 times.

Changelog of BuildCalc

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Developer information for 42nd Parallel

42nd Parallel

buildcalc@gmail.com

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Comments on BuildCalc for Android

★★★★★ Sean McGrath · Dec 6, 2023
This app is GREAT! I've had this and Construction Master Pro on my phone for years! But BuildCalc has been the one I choose to use daily! Now with Construction Masters greed BuildCalc is an even better value not to mention a better Calculator! Don't hesitate once you have this on your device you will use it more than you thought you would! Love this app!!
★★★★★ A Google user · May 29, 2016
John Best calculator on the market for remodel and new construction. Stair steps, rails, and balusters become a breeze.
★☆☆☆☆ Duane Fair · Apr 25, 2017
Too much permission request from this app. The calculator works fine. It doesn't need access to device and app history or call info, etc. Check the permissions yourself and decide if a calculator needs access to all that info
★☆☆☆☆ Billy Johnson · Dec 10, 2025
Been a brilliant app since I installed it 10 years ago, but for the last 3 months it's developed a bug. It takes forever to load, when it does it I do a calculation then come out of the app to use anywhere, then come back into this one without shutting it down then it crashes and weight accept any commands. Forcing an app closure then the long wait to get back in

Google Play Rankings for BuildCalc

Top rankings

Rank Country Category List
5 United States Business Top Paid
15 Austria Business Top Paid
15 Belgium Business Top Paid
15 Switzerland Business Top Paid
15 Czech Republic Business Top Paid
15 Denmark Business Top Paid
15 Mexico Business Top Paid
15 Netherlands Business Top Paid
15 Norway Business Top Paid
15 Portugal Business Top Paid
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Ranking history in United States

Ranking history
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Technologies used by BuildCalc

7 permissions · 3 libraries
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Trust & Safety: The app requests a mix of storage, device state, network-related and license-check permissions (e.g., READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE, READ_PHONE_STATE, ACCESS_WIFI_STATE, com.android.vending.CHECK_LICENSE). This aligns with its data saving, data sharing (PDFs), licensing, and usage analytics needs. The inclusion of a license check and non-exported dynamic receiver suggests standard protection for paid apps. Users should review the privacy policy for data handling details.
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RedX Stairs - 3D Calculator icon RedX Stairs - 3D Calculator
Classic stair calculator icon Classic stair calculator
Construction Master Pro Calc icon Construction Master Pro Calc
Civil Construction Calculator icon Civil Construction Calculator

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