colour (perceived properties of light such as hue, saturation and brightness, which allow two otherwise identical objects to be distnguished - e.g. a red apple from a green apple)
Evi is our best selling mobile app that can answer questions about local knowledge, weather, books, music, films, people and places, recipe ideas, shopping and much more. Over the next few months we will be adding all of Evi's power to this site.
Until then, to experience all of the power of Evi you can download her app for free on iOS, Android and Kindle Fire here.