Blackboard is a beautifully simple app for putting sticky notes on a zoomable board. It's the perfect way to keep quick notes, plans and to-dos - totally free from complicated lists, buttons and workflows.
The notes sync across all iPads and iPhones using the latest iCloud technology. Still, no one except yourself will have access to your notes - not even the app developer or Apple.
Designed to work great with both iPad and iPhone.