Comparison

Construction Master Pro Calc vs Sixteenths

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

Head to head
About

Construction Master Pro Calc

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Highlights
  • Dimensional math and conversions
  • Right angle and rafter calculations
  • Area and volume solutions
  • Full trigonometric functions
  • Built-in user's guide and help
  • Save and share calculations
  • Project notes and attachments
Features
Read full description

FREE Try Before You Buy 14 Day Trial; your App Store account is not charged by Apple during the free trial. Rated 4.8 stars with over 1.12M downloads. The trusted construction calculator used by professionals across the US and the world. The go-to feet-inch-fraction calculator for framers, contractors, and builders. Includes Construction Master Pro and Construction Master Pro Trig in one app, with the CMPro Training Guide built in. Built with the same core engine that powers the industry-standard advanced construction-math calculators from Calculated Industries. Award-winning tools trusted by the industry for 40 years. BUILT FOR THE JOBSITE • Framers and carpenters: rafter cuts, stair layouts, lumber quantities, and framing calculations on the job • Builders and general contractors: estimates, material takeoffs, and building layouts • Concrete and masonry: footing volume, block counts, and unit conversions • Roofing contractors: bundles, squares, pitch, and slope in seconds WHY PROFESSIONALS CHOOSE CONSTRUCTION MASTER® PRO • Powerful built-in calculations make CMPro ideal for completing layouts, plans, bids, and estimates • Work in and convert between all common building dimensional formats US & Metric • Built-in right angle functions simplify square-ups, rafters, slopes, and more • Handles framing, roofing, concrete, lumber, and stair calculations in one app • Full trigonometric functions for advanced construction math BUILT-IN SOLUTIONS • Dimensional Math and Conversions • Feet-Inch-Fraction, Inch Fraction, Yards • Decimal Feet and Inches (10ths, 100ths) • Preset Fractions (1/2" through 1/64") • D:M:S, Decimal Degree Entry and Conversions • Full Metric Function (m, cm, mm) RIGHT ANGLE SOLUTIONS • Complete Right Angle/Rafter Calculations • Pitch Key (Slope and Grade) • Rise, Run, Diagonal/Common Rafter Keys • Regular and Irregular Hip/Valley & Jack Rafter Keys • Rafter Cutting Angles (Plumb, Cheek, and Level Cuts) • Stair Layouts (including – Riser Limit, Stairwell Opening, Headroom, Floor Thickness) • Rake-Wall (including Arched) AREA AND VOLUME SOLUTIONS • Square and Cubic • Roof – Bundles, Squares, 4x8 Sheets, Pitch, Plan Area • Drywall, Siding and Paneling 4x8, 4x9 and 4x12 • Column/Cone Area and Volume -- • Basic & Advanced Circular Calculations • Weight per Volume Conversions • Length, Width, and Height Keys • Blocks, Footings SPECIAL FUNCTIONS • Trigonometric Function Keys: Sine, Cosine, Tangent, Arcsine, Arccosine, Arctangent • Board Feet • Studs: Find number On-center • User-Definable Preferences • Cost per Unit (total costs based on unit price) • Equal-Sided Polygon • Compound Miters • Crown Angle • Advanced Paperless Tape APP-ENHANCED FEATURES • Ask CMPro – exact steps for any calculation. AI built on CMPro’s 40 years of proven math • CMPro Toolbelt -- quick access to every tool, customizable for your workflow • Fast Fractions Mode -- dedicated fraction keys for faster, more precise entry • Materials Mode -- streamlined estimating for drywall, roofing, lumber, and more • Project Notes -- create text or voice-to-text notes, set up folders by project or client, add attachments, and share with your crew • EZ Calcs – 100+ forms-based calculators with illustrations for framing, concrete, roofing quantities, and much more. • Searchable Help and how-to videos • Context-sensitive Help -- press and hold any function key for Help text, diagrams, and videos • Save and share calculations and outputs (e.g., cut lists) with others on your crew • Bosch GLM integration -- send measured values into live calculations or Notes SUBSCRIPTION INFORMATION Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel in Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS Construction Master® and Calculated Industries® are registered trademarks of Calculated Industries, Inc. Copyright 2026

About

Sixteenths

This app simplifies complex construction calculations by handling feet, inches, and fractions accurately. It offers specialized solvers for common jobsite tasks like stairs, roof pitch, and concrete, with results saved automatically for easy recall. It's designed for offline use and provides a one-time purchase for full access.

Highlights
  • Exact fraction math for feet and inches
  • Ten jobsite solvers (stairs, roof pitch, etc.)
  • Automatic result saving and naming
  • Offline functionality
  • One-time purchase, no subscription
  • Conversions to yards, meters, mm, board feet
Features
Read full description

Sixteenths turns tape-measure math into instant answers. Type 12' 6-3/4" the way you say it, get exact fractions back, and cut it right the first time. Built for carpenters, framers, electricians, remodelers, and anyone who thinks in feet and inches. Stop scribbling math on drywall. Stop trusting a phone calculator that turns 3/16" into 0.1875 and rounds your cut wrong. Sixteenths does construction math the way the trades actually work — try it free, and keep it on whatever terms suit you. ► EXACT FRACTION MATH Feet, inches, and fractions are first-class keys Every value stays a true fraction — never off by a 1/16" Resolutions from 1/2 down to 1/64 Instant conversions: yards, meters, cm, mm, board feet ► NEW: CONDUIT BENDING* Offsets, 90° stubs, 3- and 4-point saddles, rolling offsets Every mark measured from the conduit end, in sixteenths Tells you which bender mark to line up — arrow or rim notch Multipliers and take-ups straight from the Klein and Greenlee charts 1/2" to 1-1/4" EMT, bends from 10° to 60° ► TEN JOBSITE SOLVERS* Stairs — risers, treads, stringer, opening from one measurement Roof Pitch — pitch, angle, rise, run, diagonal Hip & Jacks — hip/valley length and every jack cut to length Conduit Bending — offsets, stubs, and saddles marked to Concrete — yards, bags, waste, and what to order Balusters, Circle & Arc, Compound Miter, Materials, Boa ► A TAPE THAT REMEMBERS* Every calculator result saved automatically, with its exact value Name the numbers that matter — "Stair riser," "Garage s Recall them days later, still dead on ► BUILT FOR THE JOBSITE Works fully offline — basement, crawlspace, forty minut No account, no sign-in, no ads, no tracking Your numbers never leave your phone ► WHO IT'S FOR Carpenters, framers, electricians, GCs, remodelers, deck builders, stair builders, roofers, concrete crews, finish carpenters, serious DIYers — anyone who measures in sixteenths. *Solvers and the tape are part of Sixteenths Pro. ► FREE TO TRY. YOURS ON YOUR TERMS. Download and start calculating — no card, no account. The calculator gives you ten free calculations to prove the math before it asks for anything. Sixteenths Pro unlocks unlimited calculations, all ten • Yearly — $49.99/year, with a 3-day free trial • Monthly — $4.99/month, cancel anytime • Lifetime — $99.99 once, yours forever Every plan includes every solver we add after it. Tied to your Apple ID, restores free on any new device. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Built for the tool pouch. Download Sixteenths and measu Questions? support@sixteenthsapp.com Privacy Policy: https://www.sixteenthsapp.com/privacy Terms of Use: https://www.sixteenthsapp.com/terms

Screenshots

Construction Master Pro Calc4 screens
Sixteenths4 screens

Verdict

The call

The clearest difference is rating: Construction Master Pro Calc at 4.8 against Sixteenths's 3.7. Construction Master Pro Calc also leads on ratings volume (40K vs 3) and chart position (#49 vs unranked). Sixteenths's advantage is review sentiment (100% vs 60%) and update cadence (every 4 days vs every 3 weeks). On price, ads, in-app purchases and monetization model 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. Construction Master Pro Calc sells 12 in-app purchases, starting at $3.69 per month and Sixteenths sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Construction Master Pro Calc holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Construction Master Pro Calc has 40K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 60% of Construction Master Pro Calc's written reviews are positive against 100% of Sixteenths's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Construction Master Pro Calc ships an update every 3 weeks, Sixteenths every 4 days. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

Scorecard6 real differences · 5 level
Construction Master Pro Calc versus Sixteenths: the parameters behind the verdict, then further details
ParameterConstruction Master Pro CalcSixteenths
PriceFreeFree
Rating4.8 (40K ratings) — better3.7 (3 ratings)
Positive reviews60.1% of reviews100.0% of reviews — better
Number of ratings40K — better3
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#49 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size111 MB46 MB
Age rating12+4+
DeveloperCalculated IndustriesDreamer Apps

Customer experience

Construction Master Pro Calc

All ratings39,604 ratings
Positive96.4%
Neutral1.2%
Negative2.3%
Written reviews323 reviews
Positive60.1%
Neutral5.3%
Negative34.7%

Sixteenths

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Construction Master Pro Calc

Reported bugs

3 issues
  • Crashes or freezes on certain devices
  • Calculation errors in some scenarios
  • Inconsistent behavior after updates

Requested features

5 requests
  • Add metric unit support
  • Offer one-time purchase option
  • Improve backup and data transfer
  • Add more customization options
  • Enhance overall user experience

Sixteenths

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Construction Master Pro Calc

Subscriptions12
  • 1 Month Full Access7 Days trial2 variants$3.691 Month
  • 1 Month Full Access14 Days trial4 variants$4.991 Month
  • 1 Month Full Access7 Days trial$4.991 Month
Show 9 more
  • 1 Month Full Access1 Month trial$4.991 Month
  • CMPro Full Access7 Days trial$9.991 Year
  • 6 Months Full Access7 Days trial$19.996 Months
  • 1 Year Full Access7 Days trial$19.991 Year
  • 1 Year Full Access7 Days trial2 variants$29.991 Year
  • 1 Year Full Access14 Days trial4 variants$39.991 Year
  • 1 Year Full Access7 Days trial$39.991 Year
  • 1 Year Full Access1 Month trial$39.991 Year
  • 1 Year Full Access3 Months trial$39.991 Year
1 purchases

Sixteenths

One-time1
  • Sixteenths Pro$39.99

Questions

Is Construction Master Pro Calc free?
Construction Master Pro Calc is free to download, with in-app purchases available.
Is Sixteenths free?
Sixteenths is free to download, with in-app purchases available.
Which has better reviews, Construction Master Pro Calc or Sixteenths?
Construction Master Pro Calc is rated higher. Construction Master Pro Calc averages 4.8 out of 5 from 40K ratings, while Sixteenths averages 3.7 from 3 ratings.
Do Construction Master Pro Calc or Sixteenths have ads?
Neither Construction Master Pro Calc nor Sixteenths shows ads.
Which is updated more often, Construction Master Pro Calc or Sixteenths?
Construction Master Pro Calc ships an update every 3 weeks, and Sixteenths every 4 days. Most recently, Construction Master Pro Calc was updated on October 21, 2026 and Sixteenths on October 19, 2026.

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