In Spain, there are a total of nine COVID-19 tracing apps, but is this too many? Which type is preferable and does there need to be a more coordinated technology across Europe to track COVID-19? Digital Planet reporter Jennifer O’Mahony ask these questions and more on the programme.Ovarian cancer and AI In the final of our reports from the Cambridge Science Festival, Gareth and Bill meet Dr. Mireia Crispin Ortuzar. She researches AI that analyses radiographic images to help choose and track treatment for ovarian cancer. In the long-term, this type of technology could lead to more personalised medicine in response to cancer and, perhaps, in other fields of medicine as well.Robotic Ventilators At MIT, a team of scientists and engineers have developed a low-cost, open-source robotic hand that can operate manual ventilators. It could help fill the shortage of mechanical ventilators for Covid-19 patients across the globe, particularly in developing countries. Professor Daniela Rus tells Gareth how this new tech works. The programme is presented by Gareth Mitchell with expert commentary from Bill Thompson.Studio Manager: Jackie Margerum(Image: Covid-19 tracing. Credit: iStock / Getty Images Plus) Producer: Ania Lichtarowicz