If you are a MSMVIL client, this is your application. With it you can manage from your mobile everything that has to do with your lines: - Simple and permanent access, the app reminds you so you don't have to enter your data constantly. - Your consumption: calls, data consumed, messages sent, if you have contracted a bonus, everything that may interest you about your line. - Your invoices: you will be able to see your invoices from the last few months and download them in PDF. - Configuration: you can activate or deactivate the services of your mobile or contract bonuses if you need it. - If you have several lines, you can easily consult all of them from the application. - And now, if you use the widget, it is much easier to know your consumption at all times. To use it you will only need your mobile and your YoSoyMas password. If you still do not have your password or do not remember it, you can get it by entering the application itself.