On macOS 26 with Apple Intelligence turned on, Mocksyy uses the on-device model. Every result is a proposal you review, the model never decides geometry, and a plain fallback always exists.
Compose Screen
Select sticky notes on a board and choose Compose Screen. Each note becomes one or more controls on a new phone screen, laid out on a fixed grid.
Write Real Copy
Insert ▸ Write Real Copy replaces placeholder text such as Label and Button with copy that fits each control, within its length.
Import a Screenshot or Sketch
Insert ▸ Import Screenshot or Sketch (⇧⌘I) reads text and rectangles from an image and rebuilds them as native controls on a canvas of the right size. Nothing changes in your document until you accept the result.
Privacy
Every request runs on the device. Writing Tools also work in every text editor in the app.