Quote Originally Posted by khris View Post
Edited on January 14 2019
I'll edit the starting post adding some info of interest about what's allowed like:

-Resetting Adv ID -Not allowed as is forbidden by the Terms and Conditions of Video providers.
-Use of Emulators -Forbidden for the same reason as below.
-Referrals- , obtain them from 2nd accounts ¿? -not sure if it's allowed and only forbidden when you use a single device with both accounts (single identity rules¿?)
-Auto support with a 2nd account -Forbidden
Just to confirm, my understanding is that there is no limitation on using a single device to sign in to two different accounts, just that the second account should not obtain referral bonuses for the first account.

The game specifically says that the purpose of the 'Log Out' button is to be able to log in with a different account. So there's no restriction on using the same device for two (or more accounts).