We need an APP development (Android and IOS). The purpose is that the APP will need to connect to a device (already build) thru bluetooth.
After connected will read the data in the device and transfer to a MySQL database which is in internet. After transfering most of the data will be deleted and other type of data will be keeped in the device but marked as transfered to avoid duplicates.
Also when connected will check if the server have a file to be transfered to the device and if yes then download to it.