Greetings, @Mylove23.
We appreciate you reaching us about adding an app on another phone. We're here to help.
If you want to access your device on another phone, you just need to use the same email address associated with your Roku account. You don't need to create another account, as Roku devices can only be linked to one account.
If there's anything else we can do to assist you, please let us know. We're always willing to help.
Thanks,
Roku Community Team
Reynan L.
Roku Community Moderator