Growing evidence suggests digital interventions may provide neurocognitive benefits for children with ADHD. This study aimed to investigate the efficacy of a digital attention intervention in children with ADHD. In this double-blind randomized controlled trial 55 children with ADHD (5-9 years) were allocated to the intervention (N = 28) or control program (N = 27). Both programs were delivered via touchscreen tablets at home 5 days a week for 5 weeks. The primary outcome was change in the Test of Variables of Attention (TOVA) Attention Comparison Score (ACS) from pre- to post-intervention. Participants who received the intervention had significantly greater improvements in the TOVA ACS from pre- to post-intervention than those in the control (p < .044). No intervention effects were observed on secondary outcomes assessing executive functioning, ADHD symptoms, or functional impairment. Collectively these findings provide insufficient evidence for the implementation of digital attention interventions for children with ADHD.