A computer-implemented method of notifying a user of a mobile computing device about a feature of the mobile computing device, the method comprising: receiving, by a computing device, an indication of contextual information and an indication of historical information of the user of the mobile computing device, wherein the contextual information is derived from sensors of the mobile computing device that indicate information for a physical environment of the mobile computing device and the historical information of the user comprises information indicative of an extent to which features of the mobile computing device have been activated in the past; responsive to receiving the indication of contextual information and the indication of historical information of the user of the mobile computing device, determining, by the computing device, an environmental context of the mobile computing device using the contextual information, wherein the determined environmental context is associated with one or more context-based features of the mobile computing device, wherein the one or more context-based features include features of the mobile computing device suitable for use in the associated environmental context; determining, based on the historical information, whether a usage criterion associated with the one of the one or more context-based features associated with the determined environmental context has been met, wherein the usage criterion includes an indication of a number of times the one of the one or more context-based features has been previously accessed; responsive to determining that the one of the one or more context-based features associated with the determined environmental context has not met the usage criterion, outputting, by the computing device, an indication of the determination that the one of the one or more context-based features has not met the usage criterion, such that the mobile computing device outputs a notification related to the one of the one or more context-based features, wherein the notification provides a link to the one of the one or more context-based features that allows the user to activate the one of the one or more context-based features. receiving, by a computing device, an indication of contextual information and an indication of historical information of the user of the mobile computing device, wherein the contextual information is derived from sensors of the mobile computing device that indicate information for a physical environment of the mobile computing device and the historical information of the user comprises information indicative of an extent to which features of the mobile computing device have been activated in the past; responsive to receiving the indication of contextual information and the indication of historical information of the user of the mobile computing device, determining, by the computing device, an environmental context of the mobile computing device using the contextual information, wherein the determined environmental context is associated with one or more context-based features of the mobile computing device, wherein the one or more context-based features include features of the mobile computing device suitable for use in the associated environmental context; determining, based on the historical information, whether a usage criterion associated with the one of the one or more context-based features associated with the determined environmental context has been met, wherein the usage criterion includes an indication of a number of times the one of the one or more context-based features has been previously accessed; responsive to determining that the one of the one or more context-based features associated with the determined environmental context has not met the usage criterion, outputting, by the computing device, an indication of the determination that the one of the one or more context-based features has not met the usage criterion, such that the mobile computing device outputs a notification related to the one of the one or more context-based features, wherein the notification provides a link to the one of the one or more context-based features that allows the user to activate the one of the one or more context-based features.