Abstract: The invention is a device for bank account management, comprising an input device adapted to receive information related to a diversification of an initial fund of a user, and a processor adapted to calculate a distribution of the initial fund comprising one or more selected currencies based upon the diversification information, convert the initial fund from an initial currency into a converted fund comprising one or more selected currencies based upon the calculated distribution, and record the information about the converted fund in a data file for the bank account.