decato
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Decato for Mac and Windows

The AI app that does what an interior designer does. Free to plan — you connect your own AI subscription, so nothing is metered until you need real furniture and renders.

macOS 12.0 or later · Apple Silicon and Intel · no account needed to install

Windows build · coming soon

Which build do I need?

Apple menu → About This Mac. A line starting with Chip means Apple Silicon; Processor means Intel. Every Mac sold since late 2020 is Apple Silicon.

What the free app does

Planning is unlimited and costs you nothing on our side — the agent runs on an AI subscription you already pay for. Real furniture and renders run on ours, and those are the paid part.

FreePaid
Floor plans and layoutsUnlimitedUnlimited
Fit and dimension checksUnlimitedUnlimited
Runs onYour ChatGPT, Claude or Gemini keyThe same key — plus real furniture and renders
Real furniture from IKEA and Wayfair—Every store, on every paid plan
Photoreal renders—25/mo on Pro, 125 on Max 5x, 500 on Max 20x

See the plans — real furniture and renders start at $20/mo, and the paid plans differ only in render volume.

Installing

01

Open the .dmg

Double-click the file you just downloaded.

02

Drag to Applications

Drop the Decato icon into your Applications folder.

03

Right-click → Open

On the first launch only. Then confirm, and macOS remembers it.

The right-click on first launch is macOS asking about an app downloaded outside the App Store. Double-clicking instead shows a warning with no Open button — that is Gatekeeper, not a failed download.