How can I play with my same account on a different platform?
This can be done by registering your account in the Settings screen and providing an email address and password. You can then log in on another device using the same credentials via the "LOGIN WITH AN EXISTING ACCOUNT" button in the Settings > Account screen.
Open the Menu.
Tap your profile picture in the bottom-right corner.
SelectAccount on the left.
Tap "BIND YOUR EMAIL".
The created login credentials can then be used across all platforms.