# Decks 3D vs StairSmith

The clearest difference is price: Decks 3D at Free against StairSmith's $6.99. StairSmith's advantage is rating (5.0 vs 1.0) and in-app purchases (none vs 2). On ratings volume, update cadence, ads and device support there is nothing between them.

Decks 3D is free to download; StairSmith costs $6.99 up front. Decks 3D sells 2 in-app purchases, starting at $5.99 per month. StairSmith asks for nothing beyond the download.

StairSmith holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

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

## The numbers

| Metric | Decks 3D | StairSmith |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/decks-3d-deck-builder/id6760630083/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stairsmith/id6767048001/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | **Freemium** | Paid |
| Best chart rank | — | **#194** |
| Size | 6 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sebastin Michael](https://appshunter.io/developer/1224523462) | [Taylor Cascino](https://appshunter.io/developer/1882107919) |

## What reviewers say

### 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 |


### StairSmith

[App page](https://appshunter.io/ios/app/stairsmith/id6767048001)

**Currently charting:** #194 Top Paid · Utilities (US App Store)

This app calculates stair dimensions, checks building codes, and generates cut lists for builders and DIYers. It provides live diagrams, lumber information, and framing square layouts, all without requiring an account or subscription. The tool is designed for efficiency at the workbench and offers print-ready PDFs.

**Highlights:** Live elevation diagram, Print-ready PDF reports, Building code compliance checks, Framing square layout diagrams, Lumber and cut sheet generation, Supports multiple building codes

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

**In-app purchases:** none


## Frequently asked questions

### Is Decks 3D free?

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

### Is StairSmith free?

StairSmith costs $6.99, with no in-app purchases.

### Which has better reviews, Decks 3D or StairSmith?

StairSmith is rated higher. Decks 3D averages 1.0 out of 5 from 1 ratings, while StairSmith averages 5.0 from 1 ratings.

### Do Decks 3D or StairSmith have ads?

Neither Decks 3D nor StairSmith shows ads.

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

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