SimpleDiagrams vs Chalk

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

SimpleDiagrams compared with Chalk
Detail	SimpleDiagrams	Chalk
What it does	Simple, sketch-style diagrams on your Mac	A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
Stage	Not given	Not given
Founded	Not given	Not given
Based in	AU	Not given
Pricing model	Freemium	Freemium
Pricing	Desktop: one-time purchase via Mac App Store. Cloud (coming soon): Beginner $19/month (5 diagrams, 1 author seat, 10,000 updates/month), Pro $90/month (50 diagrams, 5 author seats, 500,000 updates/month), Enterprise $250/month (250 diagrams, 25 author seats, 5,000,000 updates/month). All Cloud plans	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	Hand-drawn sketch style for flowcharts and diagrams Free shape libraries for AWS, Google Cloud, networks, energy and more Offline-first desktop app with one-time purchase AI agent integration for automatic diagram generation AWS Networking & Content Delivery shapes (22 shapes) Google Cloud shape library (42 shapes) Energy shapes library (batteries, solar panels, power plants) 7-day free trial	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	Hand-drawn aesthetic that looks intentional, not generic Works offline with one-time purchase, no subscription required Free, open-source AI skills for automatic diagram generation Specialized shape libraries for cloud architecture, networks and domain-specific work	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)	31 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	14	0
Citation Flow (Majestic)	33	24
Referring domains (Majestic)	177	46

5 details filled in for both companies.

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