A method comprising: receiving, at a mobile remote computing device via a server, an invitation to receive one or more notification messages containing information indicative of an analyte concentration state of a host based on analyte sensor data obtained from a transcutaneous analyte sensor monitoring an analyte concentration state of the host, wherein the one or more notification messages are generated based on a set of rules initially set by the host at a host monitoring application installed on a mobile host communication device operably coupled to the transcutaneous analyte sensor; presenting, at the mobile remote computing device, the invitation to install a remote monitoring application on the mobile remote computing device to receive the one or more notification messages for user acceptance; installing the remote monitoring application, by the mobile remote computing device, in response to user acceptance of the invitation; configuring, using the remote monitoring application, the mobile remote computing device to receive via the server, the one or more notification messages according to the set of rules, wherein the configuration includes settings on the mobile remote computing device generated based on the set of rules initially set by the host at the host monitoring application; configuring the remote monitoring application to receive modifications to at least one of the settings at the remote monitoring application; and receiving at least one notification message at the mobile remote computing device in accordance with the set of rules and providing the at least one notification message for display in accordance with the settings including any modifications to the settings. receiving, at a mobile remote computing device via a server, an invitation to receive one or more notification messages containing information indicative of an analyte concentration state of a host based on analyte sensor data obtained from a transcutaneous analyte sensor monitoring an analyte concentration state of the host, wherein the one or more notification messages are generated based on a set of rules initially set by the host at a host monitoring application installed on a mobile host communication device operably coupled to the transcutaneous analyte sensor; presenting, at the mobile remote computing device, the invitation to install a remote monitoring application on the mobile remote computing device to receive the one or more notification messages for user acceptance; installing the remote monitoring application, by the mobile remote computing device, in response to user acceptance of the invitation; configuring, using the remote monitoring application, the mobile remote computing device to receive via the server, the one or more notification messages according to the set of rules, wherein the configuration includes settings on the mobile remote computing device generated based on the set of rules initially set by the host at the host monitoring application; configuring the remote monitoring application to receive modifications to at least one of the settings at the remote monitoring application; and receiving at least one notification message at the mobile remote computing device in accordance with the set of rules and providing the at least one notification message for display in accordance with the settings including any modifications to the settings.