Space Designer 3D vs Chalk

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Space Designer 3D compared with Chalk
Detail	Space Designer 3D	Chalk
What it does	Online floor plan maker and 3D interior design tool	A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
Stage	Established	Not given
Founded	2009	Not given
Based in	FR	Not given
Pricing model	Freemium	Freemium
Pricing	Starter: Free (1 project, basic catalog, PNG/JPG/PDF exports, 10 credits/month). Premium: $25/month or yearly with 5-day free trial (200 credits/month, 25 projects, 2,500+ furniture items). Ultimate: $45/month or yearly with 5-day free trial (370 credits/month, unlimited projects, 4,500+ furniture i	Free: $0 forever, includes all drawing tools, unlimited sketches in one folder, copy to clipboard as PNG, and auto-save with local-first storage. Pro: coming soon.
Key features	2D floor plan drawing with walls, doors, windows and measurements Real-time 3D visualization from 2D drawings Thousands of real furniture items and materials Photorealistic rendering in HD, 4K and 8K AI-powered image enhancement and automatic lighting Multi-format export including PDF, DXF, PNG and JPG Room areas and dimensions automatically calculated Multi-level floor design with stairs and roofs Team collaboration and project sharing with roles	Instant copy-to-clipboard as PNG No accounts or setup required Local-first storage with auto-save Screenshot annotation with arrows, boxes, text, and freehand tools AI diagram generation via Claude, Cursor, Windsurf, and VS Code Refine diagrams through chat Paste screenshot from clipboard Unlimited sketches in one folder Native macOS performance All drawing tools included in free version
What makes it different	No installation required - runs entirely in your browser Used by 6 million+ people worldwide since 2010 Automatic 2D to 3D conversion keeping both in sync One-click photorealistic rendering with AI optimization Built by architects for professional and consumer use	Zero-friction design: open, draw, and share in seconds with no setup or accounts Local-first architecture: all sketches stay on your Mac, nothing leaves unless you ask AI integration runs through your own subscription with no proxying of prompts
Community votes	0	0
DR (Domain Rating by Ahrefs)	49 −1 (down) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	13	0
Citation Flow (Majestic)	35	24
Referring domains (Majestic)	285	46

5 details filled in for both companies.

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