Carpentry Formulator vs EngiCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
EngiCalc
This app provides specialized calculation tools for construction professionals. It helps optimize material usage, estimate quantities, and generate precise dimensions for various building elements like concrete pours, masonry, stairs, rafters, and roofing.
- Concrete material optimization
- Masonry quantity estimation
- Effortless stair dimension generation
- Rafter length and angle calculation
- Roofing material estimation
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EngiCalc: The Ultimate Construction Calculator Suite Current Features: Concrete Calculator – Optimize material usage for your pours. Masonry Estimator – Calculate block and mortar quantities with precision. Stair Builder – Generate stair dimensions effortlessly by simply entering the total rise. Rafter Layouts – Quickly determine rafter lengths and angles. Roofing Calculator – Get accurate estimates for shingles and materials (i.e. felt paper) Future Updates Will Include: Electrical, plumbing, and additional engineering disciplines to expand the app’s capabilities.
Screenshots
Verdict
The clearest difference is review sentiment: EngiCalc at 100% against Carpentry Formulator's 25%. EngiCalc also leads on rating (5.0 vs 3.8) and in-app purchases (none vs 1). On price, ratings volume, ads 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
Both are free to download. Carpentry Formulator sells 1 one-off in-app purchase. EngiCalc asks for nothing beyond the download.
EngiCalc holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 25% of Carpentry Formulator's written reviews are positive against 100% of EngiCalc's.
Carpentry Formulator ships an update every 2 months, EngiCalc every 3 days. The most recent releases landed on September 26, 2026 and June 1, 2026 respectively.
| Parameter | Carpentry Formulator | EngiCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 25.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 23 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | Historycentral.com | Joshua Williams |
Customer experience
Carpentry Formulator
EngiCalc
In-app purchases
Carpentry Formulator
- Professional Features$2.99
EngiCalc
No in-app purchases
Questions
Is Carpentry Formulator free?
Is EngiCalc free?
Which has better reviews, Carpentry Formulator or EngiCalc?
Do Carpentry Formulator or EngiCalc have ads?
Which is updated more often, Carpentry Formulator or EngiCalc?
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