Non-invasive nerve stimulation with mobile software application

A system comprising:

• a stimulator having an interface configured to contact an outer skin surface of a user;
• an energy source coupled to the interface, wherein the energy source transmits an electrical signal comprising a plurality of electrical impulses through the interface transcutaneously through the outer skin surface of the user to a nerve of the user such that the nerve is modulated;
• a downloadable software application downloadable onto a mobile device configured for wireless coupling to the stimulator to transmit data from the software application to the stimulator, wherein the downloadable software application controls a total duration of time in which the stimulator generates the electrical signal, wherein the total duration of time is based on a number of doses of the electrical impulses, wherein the electrical impulses are substantially the same in each dose, wherein each dose has an individual duration of about 5 minutes to about 30 minutes and less than the total duration of time and the individual duration of each dose is substantially the same;
• and
• wherein the software application is configured to wirelessly receive authorization for the energy source to generate the electrical impulse for said number of doses and to communicate that authorization to the stimulator, wherein the software application is configured to automatically disable generation of the electrical signal after the authorized number of doses have been delivered such that the stimulator remains disabled until further authorization is wirelessly received from the software application.