 The investigators hope that patients will find benefits in using smartphones as memory aids. The investigators will pay for any apps that are selected to use with them and offer instructions. Use of electronic aids and alarms on phones is well practised within the existing memory aids service. This project adds a semi-structured interview and follow-up phone call and therefore a limited burden for research participants and in some cases their relativescarers. Since the intervention is non-invasive, the risk to participants is very low. 