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

Using variables on a slider to control the Brightness and Hue of a light bulb

Infinite snap carousel for Credit Card Statements. Cards designs were used from Sketch from: https://www.sketchappsources.com/free-source/2453-credit-card-designs-sketch-freebie-resource.html

Since Halloween is coming up I created this project using Proto.io's free Halloween icon pack. I simple onboarding process using scrollable containers with on swipe interactions.

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