Comparison

Brainy Builder vs Construction Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Brainy Builder

This app offers a suite of tools for carpenters, simplifying complex calculations for measurements, spacing, and project planning. It supports both metric and imperial units, with free and expanded pro versions available.

Highlights
  • Metric and Imperial unit support
  • 8 free carpentry calculators
  • Equal spacing calculation
  • Parquet floor planning
  • Stair stringer calculation
  • Rafter calculations
  • Live drawing functionality
Features
Read full description

Brainy Builder gives you fast, accurate calculations for stairs, decks, floors, fences, angles, spacing and more, right in your hand. Perfect for: • Carpenters • Builders • Contractors • DIY projects FEATURES • Stair & deck layouts • Angle calculations • Equal spacing tools • Floor & fence planning • Quick construction math • Simple and fast to use Save time. Avoid mistakes. Build with confidence. Terms and Conditions: https://www.iubenda.com/terms-and-conditions/16914265

About

Construction Calculator

This app provides a comprehensive suite of tools for construction professionals and DIY enthusiasts. It offers precise calculations for decking, roofing, stairs, concrete, and more, with support for both metric and imperial units. Designed for jobsite use, it works offline and provides clear visuals for accurate on-site measurements.

Highlights
  • Decking and flooring calculations
  • Roofing material and coverage estimators
  • Stair and stringer rise/run calculations
  • Concrete, asphalt, and gravel volume estimators
  • Slope, pitch, and angle framing helpers
  • Unit converter with mixed-unit support
  • Offline functionality
Read full description

Build faster, measure smarter. Pro² is a complete construction calculator for decking, roofing, concrete, stairs, framing and precise on-site measurements. It’s made for builders, carpenters, contractors and serious DIY who need accurate answers in seconds. DECKING & FLOORING • Area, board runs, spacing and waste allowance • Material takeoff for boards and joists ROOFING (METAL & TILE) • Coverage and sheet/tile counts • Overhangs, pitch, angle and rafter length helpers STAIRS & STRINGERS • Rise/run, slope %, angle (°) and stringer length • Clear breakdowns and step-by-step visuals BALUSTERS, RAILING & EVEN SPACING • Perfect marks from 0 to full length • Spacing tables for clean, consistent layouts CONCRETE, ASPHALT, GRAVEL & SOIL • Volume estimators for slabs, pads, footings and fills • Smart rounding for real-world quantities SLOPE, PITCH & ANGLES • Fast framing helpers for cuts and layout • Metric and imperial support in every tool UNIT CONVERTER • Length, area, volume, density and weight • Built for mixed-unit jobs (mm, ft, inches) QUICK CALCULATOR • Running history with one-tap copy/share MADE FOR THE JOBSITE • Fraction support and practical defaults • Works fully offline—no signal required • Clean visuals that stay readable outdoors WHY PROS USE PRO² • One app instead of juggling multiple separate tools • Accurate results, simple inputs and clear diagrams • New tools and improvements arrive regularly based on user feedback Pro² is built for professional construction, carpentry, decking, roofing and framing work—yet intuitive enough for DIY home projects. Upgrade to unlock additional tools and advanced features when you’re ready to grow your toolkit. SUBSCRIPTION TERMS • Carpenter Pro is an optional auto-renewing subscription with Weekly and Annual plans. • A 3-day free trial is available on the Annual plan. • Payment is charged to your Apple ID and subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. • You can manage or cancel your subscription in your App Store account settings. • Lifetime is a one-time purchase and does not auto-renew. • The localized price is shown in-app before you confirm. Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shapkin.dev/apps/carpenter/privacy.html

Screenshots

Brainy Builder4 screens
Construction Calculator4 screens

Verdict

The call

The clearest difference is rating: Brainy Builder at 5.0 against Construction Calculator's 4.8. Brainy Builder also leads on device support (4 vs 1) and iOS requirement (15.0 vs 18.0). Construction Calculator's advantage is ratings volume (24 vs 4). On price, review sentiment, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Brainy Builder sells 3 in-app purchases, starting at $0.99 per month and Construction Calculator sells 15 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Brainy Builder holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Construction Calculator has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Brainy Builder ships an update every 3 weeks, Construction Calculator every 2 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Brainy Builder versus Construction Calculator: the parameters behind the verdict, then further details
ParameterBrainy BuilderConstruction Calculator
PriceFreeFree
Rating5.0 (4 ratings) — better4.8 (24 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings424 — better
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size49 MB62 MB
Age rating4+4+
DeveloperBeyond Code ABShapkin Dev

Customer experience

Brainy Builder

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Construction Calculator

All ratings23 ratings
Positive95.7%
Neutral0.0%
Negative4.3%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Brainy Builder

Subscriptions1
  • Pro Monthly7 Days trial$0.991 Month
One-time2
  • All formulasFree
  • Pro$11.99
15 purchases

Construction Calculator

Subscriptions4
  • Carpenter PRO - Weekly$2.997 Days
  • Full Access — Weekly$5.997 Days
  • Carpenter PRO — Annual3 Days trial$19.991 Year
Show 1 more
  • Full Access — Annual3 Days trial$39.991 Year
One-time11
  • RL Level & Benchmark Calculator$3.99
  • Gravel Volume Calculator$3.99
  • Stair Stringer & Rise Run Calc$3.99
Show 8 more
  • Soil Excavation Volume Calculator$3.99
  • Asphalt Tonnage Calculator$3.99
  • Right Triangle & Pitch Calculator$3.99
  • Running Measurements Calculator$3.99
  • Unit Converter: Feet & Metric$3.99
  • Paint Area Coverage Estimator$3.99
  • Lifetime Access$39.99
  • Lifetime Access$79.99

Questions

Is Brainy Builder free?
Brainy Builder is free to download, with in-app purchases available.
Is Construction Calculator free?
Construction Calculator is free to download, with in-app purchases available.
Which has better reviews, Brainy Builder or Construction Calculator?
Brainy Builder is rated higher. Brainy Builder averages 5.0 out of 5 from 4 ratings, while Construction Calculator averages 4.8 from 24 ratings.
Do Brainy Builder or Construction Calculator have ads?
Neither Brainy Builder nor Construction Calculator shows ads.
Which is updated more often, Brainy Builder or Construction Calculator?
Brainy Builder ships an update every 3 weeks, and Construction Calculator every 2 weeks. Most recently, Brainy Builder was updated on October 24, 2026 and Construction Calculator on October 30, 2026.

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