I need to use a unique identifer for each iOS device running my app - this identifer will be stored on the server side so when my app sends data to the server the user can be identified. Any id that is unique to the device will work. Is there a way to programmatically get the either the serial number, imei, or udid of the device so it can be sent to the server API? I am just starting to use B4i (I have used B4A for years) so please forgive any dumb questions I may ask. I am totally new to iOS and Apple products.