Comparison

TDCA vs RedX Decks

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TDCA

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
Read full description

With the new Timber Decking and Cladding Association app TDCA, you can easily estimate the kind and quantity of materials you need to purchase to construct a center deck, terrace or docking facility. You can find the correct type of timber for your construction, select a deck shape and get an estimate of the quantity of deckboard, joists, oil and fixings you require, and e-mail this list of materials to others. The app also contains photos of constructions to inspire you, and an FAQ (Frequently Asked Questions) section. If you've never before constructed a deck, this app can help you get started, and for professionals, here's an app that gives you a quick estimate on-site. This app is free and since it's an iPhone app, it can be used on an iPad as well.

About

RedX Decks

Design and visualize complex deck structures, including roofs and stairs, with automatic framing and structural calculations. Generate professional, permit-ready blueprints and detailed material lists for efficient construction.

Highlights
  • 3D deck and roof design
  • Automatic framing layouts
  • Structural calculations
  • Permit-ready blueprints
  • Material and cut lists
  • 3D visualization and renders
Features
Read full description

Design decks. Add roofs. Generate permit ready blueprints. RedX Decks is powerful deck design software for contractors, designers, and serious DIY builders. Create structurally sound decks, add roof-over-deck systems with beams and posts, and generate professional construction drawings in minutes. Build straight, wraparound, gazebo, L-shaped, U-shaped, freestanding, multi-level, or fully custom decks with automatic framing layouts and structural calculations. Decks With Roof Structures Design: • Roof over deck systems • Post and beam covered decks • Gazebo roofs • Decks with integrated stairs and railings • Multi-level structural framing Create complete deck and roof framing plans including beams, joists, posts, and railing systems. Permit Ready Blueprints Generate professional PDF construction drawings: • Joist and beam layout plans • Elevation blueprints • Framing layouts • Post and railing layouts • Stair stringer plans • Structural load calculations • Detailed material and cut lists Perfect for permit applications, contractor submissions, inspections, and client presentations. Automatic Structural & Framing Layout RedX automatically calculates: • Deck tributary areas • Beam sizing logic • Joist and beam placement • Load distribution • Structural checks Automatically generate: • Beam layouts • Joist layouts • Divider boards • Joist blocking • Post spacing • Stair framing Adjust spacing, deck load, materials, and wood species to match your project requirements. 3D Visualization & High-Quality Renders View your deck and roof structure in realistic 3D. Rotate, zoom, and inspect every component before building. Export high-resolution render images for client presentations, marketing, social media, or permit documentation. Complete Material & Cut Lists Get accurate: • Lumber quantities • Cut lists • Fastener estimates • Material summaries Reduce waste and build with confidence. Built for decks attached to a house or fully freestanding structures — from simple backyard builds to covered roof-over-deck systems. Download RedX Decks and start creating permit ready deck and roof blueprints today. Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ RedX Apps Terms of Service https://www.redxapps.com/terms-of-service In-App Purchases Available Premium Monthly and Yearly subscriptions unlock advanced features. Payment is charged to your iTunes account and renews automatically unless turned off at least 24 hours before the end of the current period. Manage subscriptions in your App Store settings. Current pricing starts at $6.99 USD/month or $59.99 USD/year. Prices may vary by region and are subject to change. Active subscriptions cannot be canceled during the billing period.

Screenshots

TDCA4 screens
RedX Decks4 screens

Verdict

The call

The clearest difference is rating: RedX Decks at 4.3 against TDCA's 2.0. RedX Decks also leads on review sentiment (31% vs 0%) and update cadence (every 10 days vs every 2 months). TDCA's advantage is in-app purchases (none vs 10) and iOS requirement (7.0 vs 15.6). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. RedX Decks sells 9 in-app purchases, starting at $6.99 per month. TDCA asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

RedX Decks holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: RedX Decks has 521 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of TDCA's written reviews are positive against 31% of RedX Decks's.

UpkeepUpdate frequency

TDCA ships an update every 2 months, RedX Decks every 10 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard7 real differences · 3 level
TDCA versus RedX Decks: the parameters behind the verdict, then further details
ParameterTDCARedX Decks
PriceFreeFree
Rating2.0 (1 ratings)4.3 (521 ratings) — better
Positive reviews0.0% of reviews30.8% of reviews — better
Number of ratings1521 — better
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS7.0 — better15.6
Further details — not scored
Size7 MB177 MB
Age rating4+4+
DeveloperAVIARedX Technology Inc

Customer experience

TDCA

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

RedX Decks

All ratings521 ratings
Positive82.7%
Neutral3.1%
Negative14.2%
Written reviews39 reviews
Positive30.8%
Neutral5.1%
Negative64.1%

In-app purchases

None

TDCA

No in-app purchases

9 purchases

RedX Decks

Subscriptions6
  • RedX Decks Pro$6.991 Month
  • RedX Apps Pro++ Monthly$9.991 Month
  • RedX Apps Pro++$59.991 Year
Show 3 more
  • RedX Decks Pro7 Days trial$59.991 Year
  • RedX Decks Pro7 Days trial$69.991 Year
  • RedX Apps Bundle1 Year trial2 variants$179.991 Year
One-time3
  • 20 Render Credits$9.99
  • 100 Render Credits$29.99
  • 200 Render Credits$44.99

Questions

Is TDCA free?
TDCA is free to download, with no in-app purchases.
Is RedX Decks free?
RedX Decks is free to download, with in-app purchases available.
Which has better reviews, TDCA or RedX Decks?
RedX Decks is rated higher. TDCA averages 2.0 out of 5 from 1 ratings, while RedX Decks averages 4.3 from 521 ratings.
Do TDCA or RedX Decks have ads?
Neither TDCA nor RedX Decks shows ads.
Which is updated more often, TDCA or RedX Decks?
TDCA ships an update every 2 months, and RedX Decks every 10 days. Most recently, TDCA was updated on September 22, 2026 and RedX Decks on September 21, 2026.

Other comparisons