Comparison

BuildMate Calc vs KerfSmart Carpentry Calculator

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

Head to head
About

BuildMate Calc

Features
Read full description

BuildMate Calc makes jobsite measurement math faster and easier. Whether you're measuring lumber, checking dimensions, converting feet and inches, or working with fractional measurements, BuildMate Calc helps you get the answer without doing complicated calculations by hand. Designed for contractors, carpenters, builders, installers, DIYers, and anyone who regularly works with measurements. FEET, INCHES & FRACTIONS Enter measurements the way you actually use them: • Feet and inches • Fractional inches • Decimal measurements • Mixed measurements Quickly add, subtract, multiply, and divide measurements without manually converting everything into decimals first. FAST UNIT CONVERSION Convert between common measurement units including: • Feet • Inches • Meters • Centimeters • Millimeters Switch between US and metric measurements whenever your project requires it. BUILT FOR JOBSITE USE BuildMate Calc keeps the workflow simple: • Large, easy-to-tap controls • Clear measurement results • Fast fraction input • Simple unit switching • No unnecessary menus or complicated setup Open the app, enter your measurement, and get the result. REDUCE MEASUREMENT MISTAKES Instead of repeatedly converting fractions or calculating feet and inches manually, let BuildMate Calc handle the measurement math for you. Useful for: • Carpentry • Construction • Remodeling • Flooring • Framing • Woodworking • Installation work • Home improvement • DIY projects MADE FOR EVERYDAY MEASUREMENT WORK From checking a quick dimension to calculating measurements throughout an entire project, BuildMate Calc is designed to stay simple, fast, and reliable. Less time doing measurement math. More time getting the job done.

About

KerfSmart Carpentry Calculator

This app simplifies carpentry calculations by allowing users to input measurements in feet, inches, and fractions, just like a tape measure. It optimizes material usage for lumber and plywood, and offers specialized tools for various woodworking projects.

Highlights
  • Tape-measure style input (feet, inches, fractions)
  • Cut list optimization for lumber and plywood
  • Material waste reduction
  • Circular saw guide
  • Specialized shop tools (stairs, rafters, stud layout)
  • Scan handwritten cut lists
  • Printable/shareable project plans
Features
Read full description

Measure once. Cut once. KerfSmart is the tape-measure calculator for woodworkers, carpenters and DIYers. Add feet, inches and fractions the way you read a tape, plan cuts with the saw kerf built in, and get plywood and lumber layouts that waste less material. FREE: TAPE-MEASURE CALCULATOR • Add, subtract, multiply and divide feet, inches and fractions • Round to anything from 1/2" to 1/64", with a + / − hint when a result is a hair over or under • Convert between feet, inches, millimeters and meters, plus square feet and board feet • Full metric mode and calculation history • See how many plywood sheets a layout needs and what it saves before you upgrade KERFSMART PRO: ONE-TIME UPGRADE Cut lists • Cut to length: pack parts onto the fewest boards, with a kerf for every cut and a mark for every part • Lumber: pick which boards to buy from the sizes you can get or haul home • Plywood and sheet goods: fit parts onto the fewest sheets with straight-through cuts, numbered cut lines, step-by-step instructions and grain lock • Scan a handwritten cut list with your camera and the parts fill in • Print or share plans as a PDF, picture or project file, with your shop name on top • Saved projects, synced through your own private iCloud Circular saw guide • Enter the distance to your line and see exactly where to clamp your straightedge, accounting for your base plate and the kerf Shop tools • Board feet and cost • Even spacing for balusters, shelves and pickets • Stairs: risers, treads and stringers • Rafters and roof pitch • Stud layout • Crown molding settings for the miter saw • Diagonal and square, frame miters and arc radius One purchase, yours to keep on all your devices. No subscription. Family Sharing included. PRIVATE BY DESIGN No accounts, no ads, no analytics, no tracking. Scanned photos are read on your device and never uploaded. Saved projects live in your own private iCloud. SAFETY KerfSmart's results are estimates for planning. Always check measurements on your actual material before cutting. Stair, rafter and framing results are not engineering or building-code advice. Check your local code and use a qualified professional for structural work.

Screenshots

BuildMate Calc4 screens
KerfSmart Carpentry Calculator4 screens

Verdict

The call

BuildMate Calc and KerfSmart Carpentry Calculator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. BuildMate Calc sells 1 one-off in-app purchase and KerfSmart Carpentry Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

BuildMate Calc ships an update every 3 days, KerfSmart Carpentry Calculator every 2 days. The most recent releases landed on October 26, 2026 and November 6, 2026 respectively.

ScorecardNo meaningful differences
BuildMate Calc versus KerfSmart Carpentry Calculator: the parameters behind the verdict, then further details
ParameterBuildMate CalcKerfSmart Carpentry Calculator
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 3 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad — better
Requires iOS1717.0
Further details — not scored
Size6 MB2 MB
Age rating4+4+
Developer航 杨Dylan McCaffrey

In-app purchases

1 purchases

BuildMate Calc

One-time1
  • BuildMate Calc Pro$4.99
1 purchases

KerfSmart Carpentry Calculator

One-time1
  • KerfSmart Pro$9.99

Questions

Is BuildMate Calc free?
BuildMate Calc is free to download, with in-app purchases available.
Is KerfSmart Carpentry Calculator free?
KerfSmart Carpentry Calculator is free to download, with in-app purchases available.
Do BuildMate Calc or KerfSmart Carpentry Calculator have ads?
Neither BuildMate Calc nor KerfSmart Carpentry Calculator shows ads.
Which is updated more often, BuildMate Calc or KerfSmart Carpentry Calculator?
BuildMate Calc ships an update every 3 days, and KerfSmart Carpentry Calculator every 2 days. Most recently, BuildMate Calc was updated on October 26, 2026 and KerfSmart Carpentry Calculator on November 6, 2026.

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