A NEW COMPETITOR FOR SIRI: An app named Evi uses semantic data to provide a wider range of answers. “Created by True Knowledge, a Cambridge, U.K.-based semantic technology startup, Evi, like Siri, can answer questions posed aloud in a conversational manner. But unlike Siri, which is only loaded on the latest iPhone, Evi is available as an app for the iPhone and phones running Google’s Android software.”