There is a lack of ADHD support available to people in the UK. Young people who are transitioning between child and adult health services often face disruption to the care they may be receiving, alongside other challenges. A team at the University of Exeter are currently developing a digital intervention to improve access to healthcare for young people with ADHD, based on findings from the Managing ADHD services in Primary care study which highlight inadequacies of current support services. My mixed-methods PhD will explore ways to tailor the digital intervention to underserved communities to promote digital health equality.