BackgroundIt has been demonstrated that people with dementia’s wellbeing can improve by using touchscreen technology. The FindMyApps program is a training and web-based selection-tool to help people with dementia and their caregivers find suitable apps that can improve their self-management and engagement in meaningful activities. As part of an exploratory RCT into FindMyApps a process evaluation was conducted according to the MRC Framework for process evaluation. Contextual, implementation and mechanisms of impact factors which may influence trial outcomes were evaluated.MethodA mixed methods design was used, in which quantitative and qualitative data were collected by semi-structured interviews (SSI) with stakeholders The SSI comprised closed and open questions, designed specifically for this study. Twenty people with mild dementia (MMSE >17; GDS 3-4) or Mild Cognitive Impairment (MCI) and twenty informal caregivers in both experimental and control groups, as well as 3 other stakeholders (researchers, technical helpdesk person) involved in the implementation of the intervention, were interviewed. Participants were recruited in the Netherlands. Exclusion criteria: moderate to severe dementia or severe sight problems. All participant dyads were provided a tablet computer for the three months intervention period. In the experimental group, people with dementia and caregivers were trained to use the tablet and FindMyApps after which the caregivers guided the persons with dementia to learn to use FindMyApps and find, and use, suitable apps for self-management and meaningful activities. In the control group, dyads only received general instruction in tablet use and a list of websites where to find potentially useful apps.ResultRegarding contextual factors, it was found that some technical problems might have influenced the intervention. Regarding implementation, participants noted that the training in the use of FindMyApps was of variable quality. Regarding mechanisms of impact it was found that dyads usually used the apps they found through FindMyApps regularly and enjoyed them, but they did not use FindMyApps itself regularly.ConclusionFindMyApps was experienced as a useful tool by most people with dementia/MCI and informal caregivers. Several adaptations to the trial protocol are recommended, to ensure robust outcomes in a definitive trial into its effectiveness.