# TDCA vs Decks 3D

The clearest difference is rating: TDCA at 2.0 against Decks 3D's 1.0. TDCA also leads on in-app purchases (none vs 2) and iOS requirement (7.0 vs 17.6). Decks 3D's advantage is update cadence (every 6 days vs every 2 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Decks 3D sells 2 in-app purchases, starting at $5.99 per month. TDCA asks for nothing beyond the download.

TDCA holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

TDCA ships an update every 2 months, Decks 3D every 6 days. The most recent releases landed on September 22, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | TDCA | Decks 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/tdca/id640086167/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/decks-3d-deck-builder/id6760630083/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 6 MB |
| Requires iOS | **7.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AVIA](https://appshunter.io/developer/390606207) | [Sebastin Michael](https://appshunter.io/developer/1224523462) |

## What reviewers say

### TDCA

[App page](https://appshunter.io/ios/app/tdca/id640086167)

Easily estimate the materials needed for decks, terraces, or docks. Select timber types and deck shapes to get a material quantity estimate. Includes inspirational photos and an FAQ section.

**Highlights:** Material quantity estimation, Timber type selection, Deck shape selection, Email material lists, Inspirational construction photos, FAQ section

**Features:** Vision Pro support

**In-app purchases:** none


### 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 TDCA free?

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

### Is Decks 3D free?

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

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

TDCA is rated higher. TDCA averages 2.0 out of 5 from 1 ratings, while Decks 3D averages 1.0 from 1 ratings.

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

Neither TDCA nor Decks 3D shows ads.

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

TDCA ships an update every 2 months, and Decks 3D every 6 days. Most recently, TDCA was updated on September 22, 2026 and Decks 3D on August 17, 2026.

---

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