A recent systematic meta-review concluded that the range of digital interventions for treatment of attention deficit hyperactivity disorder (ADHD) could not be recommended. This was due to inconsistent findings and generally minimal effects on outcomes provided by independent unmasked observers [Hollis C et al J Child Psychol Psychiatry. 2017; 58: 474–503]. A novel digital therapeutic intervention has been developed to engage paediatric users through video game graphics. This uses reward loops and using real-time adaptive mechanisms that continuously personalise intervention difficulty on the basis of the user's ability and progression. This software has been …