Technological developments – smartphones, wearables, and apps – are providing exciting new opportunities to understand and impact people’s thoughts, feelings, and behaviors. Although positive psychological researchers are increasingly using such technologies to support and enhance their research these tools bring unique considerations to the deployment and evaluation of behavioural and psychological interventions. Dr. Schueller will discuss developing themes in technological work including digital phenotyping – the use of sensor-information to predict emotional and behavioral states, evaluations of rapidly developing technologies, and the growing evidence base of technology as a way to spread, scale, and understand positive psychological interventions.