A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
Charts that look designed, because they were
Stage
Not given
Startup
Founded
Not given
2026
Based in
Not given
Not given
Pricing model
Freemium
Freemium
Pricing
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.
Free: 100 React charts in Hearth collection, MIT licensed. Figma: $149 once. Code: $249 once. Complete: $349 once. All prices include every update.
Key features
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
100+ chart types organized by question
Four responsive sizes (XS, S, M, L) that re-layout from data
Identical names and props in Figma and React
Light and dark color modes
900+ size and legend variants
MCP server for AI code agents
Sector-specific datasets included
Ready-made dashboard blocks and compositions
Private registry and GitHub repository access
What makes it different
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
Same chart name and properties in both Figma design files and React code
Charts re-layout responsively instead of scaling, keeping text readable at all sizes
Pay once with all future updates included, no subscription
Integrated with shadcn and available via MCP for AI agents