I really don't know JC.
how do i transfer my data to another device

i want to know something how do i transfer my data to another device?
If you are referring to your Chess.com, your account is not stored on your device - it is stored on the website itself. So you don't need to worry about transferring your data; you can just log in on the new device.
i want to know something how do i transfer my data to another device?