Comparison

Contractor Calculator vs Sixteenths

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

Head to head
About

Contractor Calculator

This app is a jobsite calculator designed for construction professionals and DIYers. It handles various calculations for framing, roofing, concrete, and material estimation, eliminating the need for multiple tools. Streamline your measurements, planning, and material ordering with this comprehensive construction math solution.

Highlights
  • Feet, inches, fractions, and metric conversions
  • Rafter, stair, and roofing calculators
  • Concrete and material volume estimation
  • Bid markup calculations
  • Regional unit and currency presets
  • Saved tape for results
Features
Read full description

Construction Calculator is a fast jobsite calculator built for contractors, carpenters, builders, remodelers, estimators, and DIY projects. Handle everyday construction math without switching between spreadsheets, notes, and manual formulas. Calculate feet, inches, fractions, metric conversions, stairs, rafters, roofing, concrete, framing, finishes, masonry, site materials, and basic bid markup from one clean app. Key features: • Feet, inches, fractions, yards, and metric conversions • Pitch, rise, run, diagonal, hip/valley, jack rafter, rake wall, and board feet tools • Stair layout with riser count, riser height, tread count, total run, and angle • Advanced triangle, circle, and arc calculators • Roofing estimates with pitch, waste, squares, and bundle counts • Wall stud, drywall, flooring, paint, block wall, fence post, gravel, and mulch calculators • Concrete slab, footing, and post hole volume calculators • Material count rounding settings • Regional presets for units, currency, and common defaults • Saved tape for keeping important results • Copy, paste, share, memory, and theme options Construction Calculator helps speed up common field math for measuring, planning, estimating, and checking quantities before ordering materials or making cuts. Use it for framing layouts, stair planning, roof math, concrete ordering, finish material estimates, site work, and quick job cost checks. Calculations are intended as helpful estimates. Always verify measurements, local building codes, engineering requirements, and supplier specifications before cutting, ordering, or building. Unlimited option available Construction Calculator offers an auto-renewing yearly with a 3-day free trial and monthly subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription, where applicable. Terms of Use: https://lxmob.com/terms-of-use 
Privacy Policy: https://lxmob.com/privacy-policy

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

Contractor Calculator4 screens
Sixteenths4 screens

Verdict

The call

The clearest difference is rating: Contractor Calculator at 4.4 against Sixteenths's 3.7. Contractor Calculator also leads on ratings volume (140 vs 3). Sixteenths's advantage is update cadence (every 4 days vs fortnightly). 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. Contractor Calculator sells 3 in-app purchases, starting at $7.99 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

Contractor Calculator holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Contractor Calculator has 140 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Contractor Calculator ships an update fortnightly, Sixteenths every 4 days. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Contractor Calculator versus Sixteenths: the parameters behind the verdict, then further details
ParameterContractor CalculatorSixteenths
PriceFreeFree
Rating4.4 (140 ratings) — better3.7 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings140 — better3
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size45 MB46 MB
Age rating4+4+
DeveloperLxmob LLCDreamer Apps

Customer experience

Contractor Calculator

All ratings140 ratings
Positive85.7%
Neutral2.1%
Negative12.1%

Sixteenths

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

In-app purchases

3 purchases

Contractor Calculator

Subscriptions2
  • Construction Cal PRO$7.991 Month
  • Construction Cal PRO3 Days trial$39.991 Year
One-time1
  • Construction Cal PRO$49.99
1 purchases

Sixteenths

One-time1
  • Sixteenths Pro$39.99

Questions

Is Contractor Calculator free?
Contractor Calculator 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, Contractor Calculator or Sixteenths?
Contractor Calculator is rated higher. Contractor Calculator averages 4.4 out of 5 from 140 ratings, while Sixteenths averages 3.7 from 3 ratings.
Do Contractor Calculator or Sixteenths have ads?
Neither Contractor Calculator nor Sixteenths shows ads.
Which is updated more often, Contractor Calculator or Sixteenths?
Contractor Calculator ships an update fortnightly, and Sixteenths every 4 days. Most recently, Contractor Calculator was updated on October 24, 2026 and Sixteenths on October 24, 2026.

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