Showing a random image each time a button is pressed. Project was created using Variables and States

Form validation using variables and states

An example of a pricing screen imported from https://www.sketchappsources.com/free-source/3749-pages-ui-web-kit-update-2019-sketch-freebie-resource.html

2 types of modals / popup examples

SmartStylist

Interactive TV app prototype of Hulu's home page. Use the arrow keys on your keyboard (note: mouse click to enable keys) or map to a remote control on a television screen to explore a Hulu like home screen with proto io. Note: Must click the canvas to enable key presses, this seems to be a common restriction with most prototyping tools when building key press focus interaction models.

Registration form with Progress Steps

A Sample project used in various official Proto.io tutorial videos. It contains various design patterns commonly found in popular mobile apps.