Home Button

The home button is a persistent, consistently-placed control on a device that returns the user to a known starting state — typically the home screen or main menu — from anywhere in the interface. From an accessibility standpoint, the value of a reliable home button is cognitive: it provides a guaranteed recovery path when a user becomes disoriented or stuck in an unfamiliar application, which is particularly important for users with cognitive disabilities, older adults, and novices. Inconsistent home-return behaviour (for example, the same hardware button that ends a call sometimes closing the current application and sometimes not) repeatedly appears in accessibility research as a cause of broken mental models and abandonment. The shift away from physical home buttons on newer smartphones toward gesture-based home interactions has introduced new accessibility problems of its own.