Yes, the MyMoneyManager™ application relies on the information from your financial services provider's systems. None of your financial information is stored on your handset when using the application, therefore, you must have a network signal available when using MyMoneyManager™. click here. to see Sprint's coverage information
You will register a username, password, and/or pin number with your financial services provider when you enroll for access with your financial services provider. Please do not share your username, password, and/or pin number with anyone else. You must safeguard any such password or pin number at all times. If you have any questions regarding the security of the Service, you should contact your financial services provider directly.