A quick demonstration of the header switch on the new Swarm App. I've used variables to store the switch state.

A simple implementation of Pull to Refresh

This is an interactive dial pad, created with proto.io. Development & original idea: https://spaces.proto.io/akisioannou Graphic design: George Prentzas

An as close as possible copy of the IFTTT onboarding experience. This prototype is also made in 4 other tools (Pixate, Origami, Framer & Form) to compare the differences between them. More info: http://medium.com/sketch-app-sources/five-app-prototyping-tools-compared-form-framer-origami-pixate-proto-io-c2acc9062c61 Original app: http://appstore.com/IFbyIFTTT

Connect college students to their favourite ethnic dishes in their community

intended to show the flow for the Roominate app

Shaping the classroom with constructive feedback.