Comparison

Carpentry Formulator vs WoodMasterHD

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

Head to head
About

Carpentry Formulator

This app provides over 150 formulas and dozens of conversions for carpenters and builders. It calculates loads on walls and headers, material quantities for projects, and dimensions for roofing and stairs. It also includes area and volume calculations for various shapes.

Highlights
  • Load calculations for walls and headers
  • Material quantity estimation (joists, studs, concrete)
  • Roofing and stair dimension calculations
  • Area and volume formulas for geometric shapes
  • Dozens of unit conversion tools
  • Shareable calculation results
Features
Read full description

CARPENTRY FORMULATOR contains over 150 formulas that are useful for carpenters and builders. This app calculates loads on walls and loads on headers.The app calculates space between balusters, wood needed for railings It calculates Hardwood Flooring, calculations on Board Feet and Lumber conversions. It calculates the number of Joists, Sheet Rock, Concrete and Asphalt needed. The program has special sections on Roofing and Stairs. The CARPENTRY FORMULATOR has various formulas to calculate area and volumes of differing shapes. The program also includes dozens of conversions; everything from square feet to square inches and square inches to feet of water. Every result in CARPENTRY FORMULATOR shared. In the coming months there will be updates to CARPENTRY FORMULATOR that will include additional formulas. If there are formulas you would like that are not yet included, just e-mail us and we will try to include it in our next update. LOAD ON WALLS *Load on One Story Building Truss Roof *Load on One Story Building with Attic Stick Built *Load on Two Story Building with Attic Stick Roof *Total Load on Beam *Weight Header Can Carry LUMBER CALCULATION *Cost of Hardwood Flooring *Calculating Board Feet *Lumber Conversions- Board and Linear Feet MATERIALS NEEDED *Number of Joist Required *Number of Studs Required *Sheet Rock Coverage *Asphalt Needed *Cubic Yard of Concrete Needed *Coverage from Concrete ROOFING *Shed roof *Gable roof *Hip roof on square building *Gable Roof Sheathing *Shed Roof Sheeting *Hip Roof Sheeting STAIRS *Number of risers *Unit risers *Unit run *Total run Area Formulas Include: SQUARES *Area *Perimeter *Length of the diagonal RECTANGLES *Area *Perimeter *Length of base *Height *Length of diagonal PYRAMIDS *Pyramid area *Pyramid v *Volume prism SPHERES *Area of surface *Sde of cube *Volume of sphere Cylinder: *Cylinder area *Cylinder length *Volume *Capacity *Area of Cylinder Base *Length of Cylinder CIRCLES *Circumference *Radius *Diameter of Circle *Area of circle *Arc length *Degrees of arcs *Radius of arc CONES *Lateral surface area *Total surface area Ellipse:Area Hexagon:Area Parallelogram Area 200 Conversion formulas

About

WoodMasterHD

This app is a comprehensive toolkit for woodworkers, offering a variety of calculators for projects, shelving, and decking. It also includes conversion tools, reference charts for fasteners and joints, and aids for proportional design.

Highlights
  • Board Foot Calculator with Tally
  • Shelf and Decking Calculators
  • Wall Panels/Sheets Calculator
  • Fraction and Length Converters
  • Proportional and Golden Ratio Tools
  • Woodworking Joint and Wood Type References
  • Fastener Size Charts
Read full description

WoodWorkers Guild of America Rated WoodMaster as one of the Top 3 MUST-HAVE Woodworking Apps for your Phone! WoodMasterHD is an extremely handy tool for Woodworkers. Finally a LOADED Woodworking app for Woodworkers! Woodworking apps are few and far between and there are couple of good ones but very limited. Being Woodworkers ourselves, we wanted something for Woodworkers that was more than just a simple board ft. calculator… Welcome to WoodMasterHD! WoodMasterHD is packed with many time-saving features! Check the features list below for a long list of useful tools that only WoodMasterHD includes in a singe app! WoodMasterHD will continue to grow with more tools being added to each new version release. FEATURES LIST (Details on Website): Board Foot Calculator: A board foot calculator that includes a Tally count and Tally cost. Using the Tally feature, you could enter varying sizes of wood stock in groups. For example, enter all 2x4's, add it to the Tally, then 2x6's, add it to the Tally, etc. You can basically use the Tally feature to estimate the cost of an entire woodworking project. Shelf Calculator: Installing shelves for a cabinet, bookcase shelves, etc.? This will calculate spacing between the shelves evenly. Supports inches or millimeters and gives you the exact position of every shelf. Decking Calculator Calculator the number of decking boards needed for a given deck size. Calculate up to 3 deck sections, each with a different length of deck boards (8ft, 10ft, 12ft and 16ft). (Calculations are based on standard 5.5" wide decking boards.) Wall Panels Calculator (NEW) Added New Wall Panels/Sheets Calculator. Can be used to estimate plywood or paneling sheets needed to cover walls. Could be used for drywall sheet estimates but not specifically designed for it. Assumes standard 4ft x 8ft sheet sizes. Fraction Calculator (Sliderule version): Very cool method of adding and subtracting fractions without entering any numbers. Fraction Calculator (Numeric): Add fractions including whole numbers. Fraction to Decimal & Millimeter Converter Length Conversions: Most common conversions for Woodworking Proportional Calculator: Turn big woodworking projects into little woodworking projects or little woodworking projects into big woodworking projects while maintaining exact proportions. Very handy for enlarging or reducing woodworking dimensions proportionally. Golden Ratio: Calculates the Golden Ratio for any given size to find the most pleasing proportion for your Woodworking projects! Nominal to Actual Size: Shows the exact measurements of wood based on it's nominal size. Also includes millimeter size. Screw Size Chart: Handy reference chart that includes Gauge, Head-Bore, Shank and Pilot hole sizes for hardwood and software. Nail Size Chart Handy reference chart for typical nail sizes. Joint Types: Very handy visual reference for the most common types of joints used in woodworking. Wood Types: Very hand visual reference for different types of wood. If you have a sample, send it to us and we'll add it to the list. Knockdown Workbench: Our plans for building a quick knock-down Workbench from a single 4x8 sheet of plywood. Very simple and the first thing my grandfather taught me to build when I was 14 years old! You can have WoodMasterHD send these plans to your Email address in PDF format. Woodworking Project Planner PDF file: A very handy blank Woodworking Project Planner Form. WoodMaster can Email you a Project Planner form that you can print out and use for your next project. It has the most typical information for a woodworking project. You can have the WoodMaster app send this Project Planner to your Email address in PDF format. (Please note that this is not an interactive form (like a database) but a simple form that you can print out and fill in for your projects. We do plan to build an interactive Project Planner that you can fill out right in the app and then send it to your Email address.

Screenshots

Carpentry Formulator4 screens

Verdict

The call

The clearest difference is price: Carpentry Formulator at Free against WoodMasterHD's $7.99. WoodMasterHD's advantage is in-app purchases (none vs 1) and review sentiment (50% vs 25%). On update cadence, 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

Carpentry Formulator is free to download; WoodMasterHD costs $7.99 up front. Carpentry Formulator sells 1 one-off in-app purchase. WoodMasterHD asks for nothing beyond the download.

UpkeepUpdate frequency

Carpentry Formulator ships an update every 2 months, WoodMasterHD every 4 months. The most recent releases landed on September 26, 2026 and June 1, 2026 respectively.

Scorecard5 real differences · 5 level
Carpentry Formulator versus WoodMasterHD: the parameters behind the verdict, then further details
ParameterCarpentry FormulatorWoodMasterHD
PriceFree — better$7.99
Rating3.8 (4 ratings) — better—
Positive reviews25.0% of reviews50.0% of reviews — better
Number of ratings4 — better—
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree — betterPaid
DevicesiPhone, iPad — betteriPad
Requires iOS18.613.0 — better
Further details — not scored
Size23 MB5 MB
Age rating4+4+
DeveloperHistorycentral.comJohn Lullie

Customer experience

Carpentry Formulator

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews8 reviews
Positive25.0%
Neutral12.5%
Negative62.5%

WoodMasterHD

Written reviews6 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

Carpentry Formulator

One-time1
  • Professional Features$2.99
None

WoodMasterHD

No in-app purchases

Questions

Is Carpentry Formulator free?
Carpentry Formulator is free to download, with in-app purchases available.
Is WoodMasterHD free?
WoodMasterHD costs $7.99, with no in-app purchases.
Do Carpentry Formulator or WoodMasterHD have ads?
Neither Carpentry Formulator nor WoodMasterHD shows ads.
Which is updated more often, Carpentry Formulator or WoodMasterHD?
Carpentry Formulator ships an update every 2 months, and WoodMasterHD every 4 months. Most recently, Carpentry Formulator was updated on September 26, 2026 and WoodMasterHD on June 1, 2026.

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