Still chrome. Same accounts.

How do I unlock premium of this app? Am I able to use this appsumo code on any device under the purchased email?

For example. Earlier I switched to my chrome-book to travel with, I still have access to the extension. My new tab is still the chat screen. But I can not log in to have access to more than 4? Is my Ali key still attached?

I know you say data is stored locally. But it is confusing me. How the access to software is across devices