Many elderly people prefer to live in their own four walls instead of a nursing home. A familiar environment is reassuring, especially for patients with dementia. QuartrBack makes it possible for those affected to stay in their familiar environment for as long as possible. If a dementia patient presses an emergency button when they have fallen, or needs longer than usual for a walk, a tracking system finds them. If relatives, friends or volunteers have allowed their position to be located via app, the programme provides a custom emergency chain that guides the helper to the patient as quickly as possible using the navigation function.