I used the Sketch "Delicious" free UI Kit for a food recipes app. It includes 11 pixel-perfect screens. I just added Proto.io interactions and created a great prototype! This Delicious UI Kit was designed by Robert Anitei Sketch source: https://www.sketchappsources.com/free-source/1765-delicious-ui-kit-sketch-freebie-resource.html

Travel app (Part 1) Work in progress of Travel project Credits: https://www.sketchappsources.com/free-source/2947-travel-app-ui-kit-sketch-freebie-resource.html

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')

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

This UI (User Interface) prototype is the second iteration of the User Centred Design (UCD) for my university module. It shows how the pages are linked together. How interactive it is. The main reason for creating this prototype is to build it for the users by the users. It has functionality is so helpful in making the experience of listening to the music so joyous. Feel free to comment on it.