Physical disabilities include any limitations of muscular control, any pain that has an impact on movement, missing limbs, and others. In some cases, physical disabilities can even be temporary. Those who have physical challenges may use a wide variety of tools to help them access websites and apps. These tools may include alternative input devices like switch systems, one-handed keyboards, or head mice. They may also include technologies like voice control and dictation. However, users of all of these access tools have several concerns in common.