# Carpenter Tools vs Decks 3D

The clearest difference is rating: Carpenter Tools at 4.9 against Decks 3D's 1.0. Carpenter Tools also leads on ratings volume (8 vs 1). Decks 3D's advantage is update cadence (every 6 days vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Carpenter Tools sells 1 one-off in-app purchase and Decks 3D sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Carpenter Tools holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: Carpenter Tools has 8 ratings behind it against 1, so its average is the more settled of the two.

Carpenter Tools ships an update every 6 weeks, Decks 3D every 6 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Carpenter Tools | Decks 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/carpenter-tools-calculator/id6757513389/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/decks-3d-deck-builder/id6760630083/reviews) |
| Number of ratings | **8** | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 6 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 3 MB | 6 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sergii Nesterenko](https://appshunter.io/developer/1686841405) | [Sebastin Michael](https://appshunter.io/developer/1224523462) |

## What reviewers say

### Carpenter Tools

[App page](https://appshunter.io/ios/app/carpenter-tools-calculator/id6757513389)

This app simplifies carpentry calculations for framing, roofing, stairs, and more. Quickly get accurate measurements and material counts without complex formulas or spreadsheets. Ideal for on-site work, shop use, or estimating.

**Highlights:** Framing calculations, Rafter and roof calculations, Stair rise and run, Material count estimation, Imperial and metric units, Helpful diagrams, Optional cost fields

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $12.99 | one-time |


### Decks 3D

[App page](https://appshunter.io/ios/app/decks-3d-deck-builder/id6760630083)

Design and plan custom decks with detailed framing, 3D visualization, and exportable build documents. Supports various deck shapes and measurements for professional use.

**Highlights:** Design various deck shapes, Detailed framing and material lists, 3D visualization, Exportable blueprints and cut lists, Imperial and metric measurements, Offline project packages

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $5.99 | per month |
| Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is Carpenter Tools free?

Carpenter Tools is free to download, with in-app purchases available.

### Is Decks 3D free?

Decks 3D is free to download, with in-app purchases available.

### Which has better reviews, Carpenter Tools or Decks 3D?

Carpenter Tools is rated higher. Carpenter Tools averages 4.9 out of 5 from 8 ratings, while Decks 3D averages 1.0 from 1 ratings.

### Do Carpenter Tools or Decks 3D have ads?

Neither Carpenter Tools nor Decks 3D shows ads.

### Which is updated more often, Carpenter Tools or Decks 3D?

Carpenter Tools ships an update every 6 weeks, and Decks 3D every 6 days. Most recently, Carpenter Tools was updated on October 17, 2026 and Decks 3D on October 7, 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.*