A.I. Experiments by Google - Explore machine learning by playing w/ pics, music, and more

Ezy Peazy - A good job done at a fair price

Swift Playgrounds - Learn serious code on your iPad in a seriously fun way

Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.

Talk to Books by Google - Browse passages from books using experimental AI

DOT (dotisfun) - Dot is the fusion of mapping and social media.