This Splash screen prototype shows a vector animation of a headphone made in After Effects. Use the Bodymovin plugin that exports a JSON file and can be dropped right into Proto.io.

Simulation of scrollable Contacts list using variables (Use of variables and 'On scroll Interactions')

Imported from Sketch and added a few interactions https://www.sketchappsources.com/free-source/2998-crypto-currency-app-sketch-freebie-resource.html

Change of the header according to scroll position of content.

A simulation of a shopping cart project. Add remove products to a pre-set shopping cart (Use of variables and States)