**CanvasPrism: A Private Offline Whiteboard for iPhone and iPad**

CanvasPrism is a native whiteboard designed for brainstorming, diagramming, sketching, and visual thinking while keeping your work completely private. Everything works offline by default with no account, no sign up, and no internet connection required. This is a completely free app with no monetization and designed for your use offline. Your boards stay on your device, with optional iCloud sync available if you want them across your iPhone and iPad.

App Store:  
https://apps.apple.com/us/app/canvasprism-whiteboard/id6785350171

**Infinite Canvas**

Work without boundaries on an infinite canvas that gives you all the room you need for ideas.

\* Freehand drawing  
\* Shapes  
\* Lines and arrows  
\* Rich text  
\* Smooth pan and zoom navigation  
\* Perfect for brainstorming, note taking, planning, and sketching

**Create Professional Diagrams**

Build structured diagrams in just a few taps.

\* Flowcharts  
\* Mind maps  
\* Wireframes  
\* Smart connectors that automatically snap between shapes  
\* Clean layouts that are easy to edit later

**Native Apple Pencil Support**

Designed to feel natural on iPad.

\* Native Apple Pencil support  
\* Double tap gesture support  
\* Apple Pencil squeeze gesture support  
\* Responsive hand drawn experience

**Personalize Every Board**

Customize your workspace to fit your style.

\* More than 100 bundled fonts  
\* Color themes  
\* Background styles  
\* Per-board light or dark appearance

**Present your board via Screen Mirroring**

\* Custom handling for presentation via Screen Mirroring API  
\* Use laser pointers, grid, and Pan

**Import Existing Whiteboards**

Continue working with diagrams you've already created.

\* Import \`.excalidraw\` files  
\* Import \`.excalidrawlib\` libraries  
\* Compatible with the open source Excalidraw ecosystem

**Export Your Work**

Share or archive your whiteboards in multiple formats.

\* PNG export  
\* PDF export  
\* SVG export  
\* Optional transparent background  
\* Save directly to Photos or Files

**Optional iCloud Sync**

Choose whether your boards stay only on your device or sync across your Apple devices.

\* Optional iCloud sync  
\* Automatic conflict-safe copies  
\* Sync between iPhone and iPad

**Privacy First**

CanvasPrism is built around privacy from the ground up.

\* No account  
\* No sign up  
\* No ads  
\* No tracking  
\* No analytics  
\* No data collection  
\* Fully functional offline  
\* Your boards remain on your device unless you choose to enable iCloud sync

**No Monetization** 

\* No ads  
\* No IAP  
\* No Subscription   
\* No data tracking

**Built for Creative Thinking**

Whether you're planning a project, designing an interface, organizing ideas, mapping workflows, creating wireframes, or simply sketching thoughts, CanvasPrism provides a fast, distraction-free workspace that keeps your ideas private while giving you powerful diagramming and whiteboarding tools. Built on the open source Excalidraw engine, it delivers a familiar hand-drawn aesthetic inside a fully native iPhone and iPad experience.

**Built with Open Source**

\* Excalidraw for infinite canvases   
\* Excalidraw libraries for thousands of community made components   
\* Google fonts for 100+ hand selected fonts  
\* Unsplash for 80 backgrounds  
\* And various other open source components. See in-app Acknowledgements

Free on the App Store:  
https://apps.apple.com/us/app/canvasprism-whiteboard/id6785350171

A completely free tool to create Whiteboards, Flowcharts, and infinite Canvases with 100+ fonts, 400+ backgrounds, and thousands of open source components