Each year around 357 million people are diagnosed with a Sexually Transmitted Infection (STI). The challenge is getting diagnosed patients to notify their partners whom they might have infected - which is not a conversation people like to have. This novel digital service allows diagnosed patients, or the clinic, to anonymously notify partners that they are at risk of an STI via text message, encouraging them to get tested and helping them to find the nearest clinic and book an appointment online. The designers made sure that the service is easy to use for clinicians, patients and partners. Since its launch, over 7,500 people have been notified.