Systems and methods are provided for user notification of normative device output settings of a plurality of mobile computing devices operating in locale. For example, a system includes a service provider, and a computing device. The computing device transmits its current locale and device output settings information to the service provider. The service provider utilizes such information to determine a normative of device output settings of registered computing devices operating in the locale, and generates a notification message that is sent to the computing device, which comprises the normative of device output settings in the locale. The computing device presents the notification message to a user of the computing device so that the user can determine whether or not a device output setting of the computing device complies with the normative of device output settings in the locale.