Duearity AB (publ), a medical technology company, engages in the development of Tinearity, a tinnitus aid. The company's Tinearity contains a small sound element that generates white noise directly into the ear via the skull. It also develops Tinearity AI, an artificial intelligence-based solution that would help people suffering from or bothered by tinnitus to take command and master their symptoms. The company was incorporated in 2020 and is based in Malmö, Sweden.