The Dementia Clock gives both visual cues (by changing the background) and written cues ("It is now Wednesday evening") for people with various forms of dementia or other cognitive impairments, helping them remain orientated to time. The background can now be turned off if it is viewed as more of an issue that its worth. Its designed to put on a unused tablet which can be plugged in and used as a full time clock.

The Dementia Clock app was inspired by dementia clocks such as the day clock which can be found at http://www.day-clock.com/.