# Carpentry Calculator vs The Chippy Calc

The clearest difference is rating: Carpentry Calculator at 5.0 against The Chippy Calc's 4.5. Carpentry Calculator also leads on monetization model (free vs free with in-app purchases) and iOS requirement (13.0 vs 15.1). The Chippy Calc's advantage is review sentiment (100% vs 71%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Carpentry Calculator sells 2 one-off in-app purchases and The Chippy Calc sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Carpentry Calculator holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 71% of Carpentry Calculator's written reviews are positive against 100% of The Chippy Calc's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Carpentry Calculator | The Chippy Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/carpentry-calculator/id1586739365/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/the-chippy-calc-builder-tools/id6499256065/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 79 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matthew Spencer](https://appshunter.io/developer/1642000494) | [Vike Digital Pty Ltd](https://appshunter.io/developer/1742926734) |

## What reviewers say

### Carpentry Calculator

[App page](https://appshunter.io/ios/app/carpentry-calculator/id1586739365)

This app simplifies complex calculations for carpenters, builders, and DIY enthusiasts. It handles tasks like roofing, stairs, and decking, offering both metric and imperial units. Visual aids and detailed measurements enhance accuracy and efficiency on any project.

**Highlights:** Roofing calculations, Stair and decking measurements, Concrete slab and post hole calculations, Raked wall and balustrade design, Trigonometry functions, Metric and imperial unit support, Light and dark mode options

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Discounted upgrade | $3.49 | one-time |
| Upgrade to paid version | $4.99 | one-time |


### The Chippy Calc

[App page](https://appshunter.io/ios/app/the-chippy-calc-builder-tools/id6499256065)

This app provides carpenters, builders, and DIYers with precise, visual construction calculations. It offers specialized tools for stairs, decks, rafters, and more, with support for both metric and imperial units. All calculations can be saved and accessed offline.

**Highlights:** Visual results with scaled diagrams, Metric and imperial unit support, Offline functionality, 14+ specialized construction calculators, Stair, deck, and rafter calculations, Linear cut list optimization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annually | $19.99 | per year |
| Lifetime Premium Access | $79.99 | one-time |


## Frequently asked questions

### Is Carpentry Calculator free?

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

### Is The Chippy Calc free?

The Chippy Calc is free to download, with in-app purchases available.

### Which has better reviews, Carpentry Calculator or The Chippy Calc?

Carpentry Calculator is rated higher. Carpentry Calculator averages 5.0 out of 5 from 1 ratings, while The Chippy Calc averages 4.5 from 2 ratings.

### Do Carpentry Calculator or The Chippy Calc have ads?

Neither Carpentry Calculator nor The Chippy Calc shows ads.

### Which is updated more often, Carpentry Calculator or The Chippy Calc?

Carpentry Calculator ships an update every 2 months, and The Chippy Calc every 2 months. Most recently, Carpentry Calculator was updated on September 10, 2026 and The Chippy Calc on September 22, 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.*