Vitalk is a digital solution designed to address a huge mental health treatment gap. It is a smartphone application containing mental health check-ups and guided self-care programmes, delivered in conversation format by Viki, our AI-powered virtual mental health assistant. Written by clinical experts with evidence-based techniques, Vitalk aims to overcome traditional barriers to access by offering free, anonymous and effective tools that can be used anytime, anywhere. Vitalk has the additional functionality of enabling the user to converse with a licensed (human) Psychologist. Initial results show a 30% reduction in anxiety and low mood after using Vitalk for one month.