The project contains numerous examples completed using variables and conditional logic.

Hi there! I would like to share with you the latest version of Spotify prototype. Now you can listen to music while browsing the prototype.

I created a prototype of the UBER app for Android in order to demonstrate what is possible using Proto.io. This project was a massive undertaking as my goal was to simulate the user experience of what it would be like to order 4 different UBER cars in San Francisco. I plan on doing a full "behind the scenes" article on my website about the challenges I faced along the way simulating the UBER app in Proto.io. Special thanks to the awesome team at Proto.io for all of their tireless assistance along the way! If you are looking for an experienced Proto.io prototype engineer or are looking for tutorials and more information about Proto.io please visit my website: http://protonerds.com/

Tinder UI cards

This is a prototype of an app that pairs with a fitness track called Pulse Band. Pulse Band can count steps, measure heart rate, count stairs climbed, and also measure blood pressure.

My first app for application idea contest in Kungbuk, South-Korea.

A demo showcasing custom device size, animations and key actions. Use arrow keys to switch between "Play" and "Settings", and X and Z keys to navigate.

A basic example of reproducing Instagram info bars behaviour. A list header floats over the list's items and remains visible at the edge of the screen until it is replaced by the next list header

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

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