Comparison

Construction Calculator Pro #1 vs Chalk

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

Head to head
About

Construction Calculator Pro #1

This app provides advanced construction math tools for builders and contractors. It offers precise calculations for framing, material estimation, and complex angles, helping to reduce errors and save time on the job.

Highlights
  • Dimensional conversions (feet-inch, decimal, metric)
  • Rafter, stair, and angle calculations
  • Area, volume, and material estimations
  • Roofing, drywall, and siding estimates
  • Quick input with preset fraction buttons
Features
Read full description

Construction Calculator Pro #1 The Smartest Tool for Builders, Contractors, and Tradespeople Whether you’re framing a roof, estimating materials, or laying out stairs, Construction Calculator Pro #1 gives you the precision, speed, and reliability you need on the job. Designed for professionals, this app offers a full suite of advanced construction math features — from dimensional conversions to complex angle and rafter calculations — all in one powerful, easy-to-use tool. Key Features: Advanced Construction Math • Easily switch between feet-inch-fractions, decimal feet, metric units, and more • Preset fraction buttons for quick and accurate input • Convert seamlessly between all major formats Rafter, Stair & Angle Solutions • Calculate rise, run, and diagonal instantly • Handle common, hip, valley, and jack rafters with ease • Get precise cuts and angles for stairs, rake walls, and compound miters Area, Volume & Material Estimations • Compute square footage, cubic volume, and plan areas • Estimate roofing (bundles, sheets, pitch), drywall, siding, and more • Quickly calculate block and footing quantities Why Professionals Choose It: • Eliminates guesswork and reduces costly errors • Saves time on-site and during planning • Offers the versatility of two top-tier construction calculators in one app Built for those who build. Download Construction Calculator Pro #1 and put industry-grade power in your pocket. Terms of Use: https://apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://equable-stock-b78.notion.site/Privacy-Policy-230ecf57511e8055b033ff10a63428be

About

Chalk

This construction calculator handles metric and imperial units seamlessly, offering specialized tools for various trades like framing, tiling, and concrete work. It features an AI advisor for job guidance and works offline, ensuring accessibility on any job site.

Highlights
  • Metric and imperial unit support
  • Specialized trade calculators (stairs, rafters, concrete, etc.)
  • AI Advisor for job guidance
  • Offline functionality
  • Adjustable fraction precision
  • Saved projects
Features
Read full description

Type feet, inches and fractions the way you say them. Chalk's keypad takes 5 ft 3 1/2 in on one line, with one-tap fraction keys for 1/2, 1/4, 1/8 and 1/16, and answers in feet, inches and fractions. No decimal-feet guesswork and no converting in your head. Add, subtract, multiply and divide measurements on the tape calculator, then let Chalk do the job math. Every result rounds to the fraction precision you pick, down to 1/64 of an inch. THE TOOLBOX • Stairs: risers, treads, stringer length, angle and a code check • Rafters and Roof: common and hip or valley lengths from span and pitch • Concrete: slabs, footings and post holes, with bag counts • Framing and Studs: stud counts and plate lineal for any wall • Drywall: sheets, screws, compound and tape • Tiling: tiles, adhesive and grout, waste included • Brick and Block: US, UK and AU sizes, plus mortar • Decking: board rows, lineal length and fasteners • Board Feet: lumber volume and cost • Equal Spacing and Balusters: even layouts that meet code • Aggregates: gravel, sand, soil and asphalt by volume and weight • Running Measurements: layout tables from a start point and interval • Chalk Pad: a full-size dimensional calculator with memory and rise, run, pitch, diagonal, hip, jack and stair keys • Free tools: tape calculator, triangle solver, square footage and volume, pitch and slope, square check and a unit converter METRIC WHEN YOU NEED IT Working from a metric plan? Switch to millimeters and meters in Settings. Every result shows both systems, and one entry can even mix units. ASK THE ADVISOR Chalk's AI Advisor talks the job through: quantities, materials, layout and sequencing. Attach a saved project and it works with your exact numbers. The Advisor needs a connection. Every calculator works offline. BUILT FOR THE JOB SITE • Works fully offline, with no account and no ads • A clear diagram on every calculator • Saved projects keep every number with the job it belongs to • Light, Dark or System appearance • Big results you can read in the sun MADE FOR Carpenters, framers, contractors, builders, concrete crews, remodelers and serious DIYers. Chalk Pro unlocks every trade calculator, the Chalk Pad, the AI Advisor and saved projects. Weekly and yearly subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Results are estimates, so always check quantities before ordering. Privacy Policy: https://chalkcalc.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms and Conditions: https://chalkcalc.com/terms Support: support@chalkcalc.com

Screenshots

Construction Calculator Pro #14 screens
Chalk4 screens

Verdict

The call

The clearest difference is in-app purchases: Construction Calculator Pro #1 at none against Chalk's 2. Construction Calculator Pro #1 also leads on ratings volume (97 vs 2) and iOS requirement (17.0 vs 26.0). Chalk's advantage is rating (5.0 vs 4.5) and update cadence (every 3 months vs every 12 months). On price, 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

Both are free to download. Chalk sells 2 in-app purchases, starting at $2.99 per 7 days. Construction Calculator Pro #1 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Chalk holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Construction Calculator Pro #1 has 97 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Construction Calculator Pro #1 ships an update every 12 months, Chalk every 3 months. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
Construction Calculator Pro #1 versus Chalk: the parameters behind the verdict, then further details
ParameterConstruction Calculator Pro #1Chalk
PriceFreeFree
Rating4.5 (97 ratings)5.0 (2 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings97 — better2
Update frequencyEvery 12 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS17.0 — better26.0
Further details — not scored
Size15 MB18 MB
Age rating4+4+
DeveloperOryxLionary LLC

Customer experience

Construction Calculator Pro #1

All ratings96 ratings
Positive90.6%
Neutral3.1%
Negative6.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Chalk

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Construction Calculator Pro #1

No in-app purchases

2 purchases

Chalk

Subscriptions2
  • Chalk Pro Weekly$2.997 Days
  • Chalk Pro Yearly$17.991 Year

Questions

Is Construction Calculator Pro #1 free?
Construction Calculator Pro #1 is free to download, with no in-app purchases.
Is Chalk free?
Chalk is free to download, with in-app purchases available.
Which has better reviews, Construction Calculator Pro #1 or Chalk?
Chalk is rated higher. Construction Calculator Pro #1 averages 4.5 out of 5 from 97 ratings, while Chalk averages 5.0 from 2 ratings.
Do Construction Calculator Pro #1 or Chalk have ads?
Neither Construction Calculator Pro #1 nor Chalk shows ads.
Which is updated more often, Construction Calculator Pro #1 or Chalk?
Construction Calculator Pro #1 ships an update every 12 months, and Chalk every 3 months. Most recently, Construction Calculator Pro #1 was updated on October 24, 2026 and Chalk on October 24, 2026.

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