# Carpentry Formulator vs EngiCalc

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.

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.

## The numbers

| Metric | Carpentry Formulator | EngiCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (4 ratings)](https://appshunter.io/ios/app/carpentry-formulator/id305583131/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/engicalc/id6742305878/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 23 MB | 96 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Joshua Williams](https://appshunter.io/developer/1797613871) |

## 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 |


### EngiCalc

[App page](https://appshunter.io/ios/app/engicalc/id6742305878)

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.

**Highlights:** Concrete material optimization, Masonry quantity estimation, Effortless stair dimension generation, Rafter length and angle calculation, Roofing material estimation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Carpentry Formulator free?

Carpentry Formulator is free to download, with in-app purchases available.

### Is EngiCalc free?

EngiCalc is free to download, with no in-app purchases.

### Which has better reviews, Carpentry Formulator or EngiCalc?

EngiCalc is rated higher. Carpentry Formulator averages 3.8 out of 5 from 4 ratings, while EngiCalc averages 5.0 from 2 ratings.

### Do Carpentry Formulator or EngiCalc have ads?

Neither Carpentry Formulator nor EngiCalc shows ads.

### Which is updated more often, Carpentry Formulator or EngiCalc?

Carpentry Formulator ships an update every 2 months, and EngiCalc every 3 days. Most recently, Carpentry Formulator was updated on September 26, 2026 and EngiCalc 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.*