Change Email or Login Method
Currently, you can't switch to a different provider or change the email address after you selected one, this is something we are working on but it isn't available yet.
The best alternative, in this case, would be for you to create a new Drops account with a completely different email address on the very same device. The system will then automatically sync both and transfer all your progress and purchase from your old to your new account.
If the sync doesn't work correctly, please tap on the pen icon on the bottom right corner while logged in or fill up this form here and we will get back to you asap.