Mobile@Old project will supervise elderly people in their homes, tracking their physical daily activities and supervising their vital signs (pulse, heart rate, etc), thus acting as a personal assistant. It extracts a mobility pattern for each user and generates remainders and alerts regarding his/her physical and other daily activities. In case of low physical activity, the user is advised to increase the level of physical exercise. The exercises are performed interactively, as an adaptive game, specifically designed for elderly persons. The intensity level of the recommended physical exercises is generated and adapted based on both vital parameters of the user (analyzed using a medical expertise) and also on the observed behavior by a team of psychologists.