True Knowledge, with its world-renowned Answer Engine (as opposed to just a 'search engine') has managed to incorporate its unique semantic technology into a voice assistant. This is said to be even smarter and more effective, than the highly praised Siri which is featured in Apple's latest iPhone.
Evi is based on a huge database developed over many years, combined with highly advanced technology. This is is able to provide a deep understanding of language and, apparently, perform more complex actions than Siri.
Mike Butcher, from TechCrunch Europe, explains how he put Siri and Evi to comparative tests, and also reveals who came out on top in the head-to-head.
When he asked the two digital assistants for an apple pie recipe, Siri sent him to a website, while Evi actually did the search and displayed a list of recipes.
On more complex answers, Evi also performed better; she was actually able to display the name of the US president that was in the White House during Queen Elizabeth II's teenage years. Siri meanwhile, froze and again sent the user to the web.
True Knowledge, which is based out of Cambridge and London, explains on its website that the technology that powers Evi is based on a huge database of facts, that contain trillions of questions, grouped in tens of thousands of classes.
Consequently, Evi "understands user questions, represents knowledge in a way that the system can understand and process, and can combine existing knowledge to infer new facts and answer questions it has never seen before."
[Ed: A number of early users are suggesting that Evi's servers are not really up to scratch just yet, ie: "I got this to work once before the servers went down again but it seems like it will be amazing once they are able to support the demand on the servers." ]