Browser: Free. Native app for iPhone, iPad and Mac: €14.99/$12.99 at launch (regular €19.99/$19.99), one-time purchase across all three devices, no subscription.
Not given
Key features
Fully offline with no server required
Real folders on disk and Markdown files
Automatic version history with restore
Sync via user's own cloud folder (iCloud, Dropbox)
Nested folders to any depth
Freehand drawing with pen and color
Magnetic arrows for connecting elements
Full-text search across all folders
Interactive to-do lists on canvas
Eyedropper tool for picking colors from anywhere on screen
Support for multiple color modes including RGB, HSB, and HSL
Color library with save and organization functionality
Powerful search functionality to find colors by name or value
Menu bar quick access with one-click copy
Multiple export formats for color values
Global hotkey for instant color picking
Color history tracking and management
Customizable global hotkeys and color format preferences
Automatic dark mode adaptation
What makes it different
No account or server: your data never leaves your device
Real files you own: folders are real folders, documents are Markdown files
Works fully offline with no internet dependency
Automatic sync through your own cloud (iCloud or Dropbox)
Native apps for iPhone, iPad and Mac showing full canvas
Secure local data storage with no privacy concerns
visualOS
PixelColor