The European Dementia Prevention Initiative brings together researchers involved in dementia prevention studies. It is an investigator-initiated initiative of several groups involved in ongoing dementia prevention trials in Europe. It started in 2011 with the first meeting held in Stockholm, Sweden. In addition to four successful randomised controlled dementia prevention trials in Europe, EDPI-collaborators are running a dementia prevention study using an innovative mobile phone-based intervention strategy, called PRODEMOS (Prevention of Dementia using Mobile Phone Applications).