[EpiData-list] Remote storage/access to data collected in EpiData

Dear EpiData users, I have designed a relational data system for a nutritional cohort study in Nigeria and was wondering if anyone on this forum has any tips or recommendations for how best to establish a server/cloud based back up of the system so that the PI's can have remote access to do additional data quality assurance. More specifically, are there freely accessible or at least affordable secure servers or data storage facilities that you would recommend if neither ourselves or implementing partner have that facility in place? With kind regards, Edna Ogada