How to transfer devices?

Below are all our current options. Please pick the one that relates to your situation.

IOS to IOS	Choosing the same login. Just Play non-transferable.
IOS to Android	Google login is available on both. IOS and Just Play is non-transferable.
IOS to Browser	Google login is available on both. IOS non-hidden email should be able to transfer to the web. Just Play is non-transferable.
Android to Android	Choosing the same login. Just Play non-transferable.
Android to IOS	Google login is available. Just Play and GPG is non-transferable.
Android to Browser	Google login is available. Just Play and GPG is non-transferable
Browser to Browser	Choosing the same login.
Browser to IOS	Google login is available. No other options are transferable.
Browser to Android	Google login is available. No other options are transferable
Steam to Android	Steam is separate. No transfer options are available.
Steam to IOS	Steam is separate. No transfer options are available.
Steam to Browser	Steam is separate. No transfer options are available.
Just Play Transfer	Not yet available. Tied to specific device only.