Comparison

Construction Calculator++ vs Carpenter Pro Calc

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

Head to head
About

Construction Calculator++

This app provides specialized calculations for construction projects, including volume, area, and material estimation. It offers tools for unit conversions, rafter calculations, and circle/arc measurements, aiding in accurate project planning and execution.

Highlights
  • Length-Width-Height calculations for area, volume, and wall area
  • Material estimation for bricks, blocks, pavers, and tiles
  • Drywall sheet quantity calculation
  • Linear measure addition, subtraction, and conversion
  • Rafter calculations for common, hip, valley, and jack rafters
  • Circle and arc parameter calculations with visual plots
Features
Read full description

The creators of top ranked Statistics Calculator++ for iPhone and Statistics Calculator+++ for iPad, present Construction Calculator++, designed for construction math solutions and unit conversions. Construction Calculator++ comes with the following features: - Length-Width-Height Module: You can enter Length, Width, or Height values in Yard-Feet-Inch-Fractions, Decimal Feet, 
Decimal Inches, and Yards. Enter the Length and Width to calculate Area, Perimeter (of a room), and Square-up. In addition, enter the Height to calculate the Volume, Wall Area, and Total Room Area. You can enter any single length value and convert it to other dimensions, for example from Feet-Inch-Fractions to Decimal Feet or Decimal Inches or back. Furthermore you can tap on any calculated dimension to convert it to other dimensions. If the calculated value is Volume you can tap and see its conversion to Board Feet. - Bricks/Blocks/Pavers/Tiles Function calculates the number of Bricks/Blocks/Pavers/Tiles needed for a certain length or area. You can use the standard 8-inch x 16-inch size block/mortar (area of 128 square inches) or enter custom block size by height and length or area. Furthermore, this function allows you to quickly and simply add a waste allowance to the number of blocks calculated. - Drywall Sheets Function calculates the number of 4 x 8, 4 x 9, and 4 x 12 feet sheets required for an area or length. Furthermore, you can add your own custom size of Drywall Sheets. - Add, subtract, or convert linear measures with different units. The units include yard, feet, inches, inch fractions, meters, centimeters and millimeters. - Rafter Module: Enter any two of the four parameters, Rise, Run, Diagonal, or Pitch to calculate the unknowns. Run, Rise, and Diagonal values can be entered in Feet, Inches and Inch fractions or Decimal Feet and Decimal Inches. Pitch can be entered as a dimension in inches which is the amount of rise over 12 inches of run. Furthermore, Pitch can be entered as an angle in degrees, a percent grade or slope (pitch ratio). Tap on any of the values to see its conversion to other formats. In addition to Common Rafter, you can perform calculations of Regular and Irregular Hip/Valley and Jack Rafters. You can also calculate Plump and Level cut angles. Simply enter known values of Common Rafter and you are done. Length and cut angles of the adjoining Hip (or Valley) rafters, Incremental Jack Adjustment, Regular/Irregular Jack Rafter Lengths and Cut Angles for 16 Inch On Center Spacing are all automatically calculated. You can also enter an On Center Spacing other than 16 Inches. - Circle and Arc Module: Solves for parameters of circle and arc. The parameters include radius, diameter, area, circumference, arc length, arc angle, chord length (run), segment rise (rise), segment area, and pie slice area. A plot of circle or arc and its parameters is drawn to scale to visualize the parameters for you . - Shows the expression as you enter and keeps a history of your calculations (Swipe up on the screen to reveal the history) - Capability of performing fraction manipulations and converting between different formats (proper, improper, and mixed fractions) and seamless integration of fraction, integer, and decimal manipulations. - Capability of inputting degrees, minutes, and seconds for angles and converting between degrees-minutes-seconds format and decimal format. - The left pane scrolls to reveal more functionality without a need to switch modes. The digits and most common operations are always visible and the less common operations can be revealed by scrolling the left half of the screen. - Sinusoidal functions can be calculated for angles in units of degrees, radians, or gradians.

About

Carpenter Pro Calc

This comprehensive calculator is designed for construction professionals, offering a wide range of tools for measurements, estimations, and layout calculations. It provides both free and pro features, all accessible offline and without ads.

Highlights
  • Fractional math for measurements
  • Unit conversion for various metrics
  • Area and roof pitch calculations
  • Stair and rafter layout tools
  • Material and concrete slab estimation
  • Framing and tile layout assistance
  • Offline functionality
Features
Read full description

Built in 2026, not 2012. Carpenter is the trade calculator for carpenters, framers, roofers, and remodelers who are tired of plastic-calculator emulators, ads mid-job, and per-trade upsells. One-time $14.99. Full Pro toolkit. All IRC editions. Forever. FREE CALCULATORS • Feet-Inch Calculator — fractional math (5'4 1/2" + 3'7 3/8") with configurable precision (1/2, 1/4, 1/8, 1/16, 1/32) • Unit Converter — Length, Area, Volume, Temperature, Weight, Pressure (ft↔m, in↔mm, ft²↔m², yd³↔m³, °F↔°C, lb↔kg, psi↔kPa) • Area Calculator — rectangle, triangle, circle, trapezoid • Roof Pitch Calculator — rise/run ↔ angle ↔ slope % PRO CALCULATORS — $14.99 one-time (V1.0) • Stair Calculator — total rise/run, treads, IRC R311.7 layout, feet-inch fractions • Rafter Calculator — common, hip, valley, jack, ridge cut, birdsmouth, tail cut, plumb/bevel • Material Estimator — board feet, lineal feet, sheet goods, waste • Concrete Slab — yards, 60lb/80lb bags, rebar grid, expansion joints • Framing Layout — wall studs (16/19.2/24 OC), plates, blocking, header sizing per IRC R602 • Tile Layout — area + grout joint + waste, per-box, layout offset • Roof Coverage — squares, bundles, ridge cap, drip edge, underlayment REFERENCE TABLES • IRC R602 — stud spacing • IRC R311 — stair geometry • IRC R905 — roofing material reference • Lumber dimensions (nominal vs actual) WHY CARPENTER? - No ads. Ever. - No accounts. No sign-in. - All IRC editions included — 2018, 2021, 2024 (no future upsell) - No subscription required — $14.99 once, forever - 7-day free trial of Pro - 100% offline — no signal needed on the jobsite - Dark mode + glove-friendly tap targets - Universal — iPhone + iPad in one purchase Same pricing model as Conduit — our sister electrician calculator. You buy it once, you own it forever. That's the deal. — LEGAL — Privacy Policy: https://panxiang1017.github.io/StaticPage/privacy-policy.html Terms of Use (EULA): https://panxiang1017.github.io/StaticPage/terms-of-use.html

Screenshots

Construction Calculator++4 screens
Carpenter Pro Calc4 screens

Verdict

The call

The clearest difference is price: Carpenter Pro Calc at Free against Construction Calculator++'s $0.99. Carpenter Pro Calc also leads on rating (5.0 vs 4.2) and update cadence (every 6 days vs every 3 weeks). Construction Calculator++'s advantage is in-app purchases (none vs 1) and ratings volume (50 vs 1). On ads and device support 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

Carpenter Pro Calc is free to download; Construction Calculator++ costs $0.99 up front. Carpenter Pro Calc sells 1 one-off in-app purchase. Construction Calculator++ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Carpenter Pro Calc holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Construction Calculator++ has 50 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Construction Calculator++ ships an update every 3 weeks, Carpenter Pro Calc every 6 days. The most recent releases landed on October 14, 2026 and September 25, 2026 respectively.

Scorecard7 real differences · 3 level
Construction Calculator++ versus Carpenter Pro Calc: the parameters behind the verdict, then further details
ParameterConstruction Calculator++Carpenter Pro Calc
Price$0.99Free — better
Rating4.2 (50 ratings)5.0 (1 ratings) — better
Positive reviews75.0% of reviews—
Number of ratings50 — better1
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperDogahe向 潘

Customer experience

Construction Calculator++

All ratings50 ratings
Positive78.0%
Neutral8.0%
Negative14.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Carpenter Pro Calc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Construction Calculator++

No in-app purchases

1 purchases

Carpenter Pro Calc

One-time1
  • Carpenter Pro — Unlock All$9.99

Questions

Is Construction Calculator++ free?
Construction Calculator++ costs $0.99, with no in-app purchases.
Is Carpenter Pro Calc free?
Carpenter Pro Calc is free to download, with in-app purchases available.
Which has better reviews, Construction Calculator++ or Carpenter Pro Calc?
Carpenter Pro Calc is rated higher. Construction Calculator++ averages 4.2 out of 5 from 50 ratings, while Carpenter Pro Calc averages 5.0 from 1 ratings.
Do Construction Calculator++ or Carpenter Pro Calc have ads?
Neither Construction Calculator++ nor Carpenter Pro Calc shows ads.
Which is updated more often, Construction Calculator++ or Carpenter Pro Calc?
Construction Calculator++ ships an update every 3 weeks, and Carpenter Pro Calc every 6 days. Most recently, Construction Calculator++ was updated on October 14, 2026 and Carpenter Pro Calc on September 25, 2026.

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