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

Replicating the Classic game 'Pong' using variables.

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

Concept intro of a mobile app. Loading screen and logo animating to the home screen of the app. Content appears in a subtle animation.

Test app I made to try this out :)