“…The digital health field was estimated to be worth $25b globally in 2017 (Duggal, Brindle, & Bagenal, 2018;The Lancet, 2017) with one US survey finding that 58% of smartphone users had downloaded at least one health app (Pai, 2015). Although mental health service user ownership of smartphones has increased (Migo et al, 2015) there is still evidence of a digital divide (Ennis, Rose, Denis, Pandit, & Wykes, 2012;Girard, Nubukpo, & Malauzat, 2017;Robotham, Satkunanathan, Doughty, & Wykes, 2016;Tobitt & Percival, 2019). Any benefits for those experiencing mental health problems are, therefore, likely to be less than in the general public, due to lack of access and skills.…”