Is my Psn Mail the same as the mail from my FIFA 21 Acc?

I would like to use the FIFA 21 Companion app but don't know whether the email and password for the app are the same as my PSN account. Does anyone know and could help?

No that is different. The Companion App runs through your EA account and so you have to have registered or created a part of FIFA on the PlayStation. So you have to log into the Companion App with your EA account.

You don't need your PSN account for this.