This study compares intervention delivered by a therapist to intervention delivered using an iPad for two children with autism. Further, this study evaluates the influence of choice between the conditions. Methods: Time on-task, challenging behaviour, session duration and correct responses were compared across conditions in an alternating treatment design. The effect of choice was evaluated in an ABAB design. Results: The iPad was associated with shorter intervention sessions, more time on-task and less challenging behaviour for one participant.