# Carpentry Formulator vs WoodMasterHD

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.

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.

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.

## The numbers

| Metric | Carpentry Formulator | WoodMasterHD |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/carpentry-formulator/id305583131/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 25.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Paid |
| Size | 23 MB | 5 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [John Lullie](https://appshunter.io/developer/370571602) |

## What reviewers say

### Carpentry Formulator

[App page](https://appshunter.io/ios/app/carpentry-formulator/id305583131)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Professional Features | $2.99 | one-time |


### WoodMasterHD

[App page](https://appshunter.io/ios/app/woodmasterhd/id549052247)

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

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*