Why can't I authenticate using my mobile bank app? Joao Last updated June 29, 2020 13:29 Follow As of Q2 2020, Spanish banks and PSPs do not offer app-to-app logins. You must use Online Banking instead. Related articles How are `credentials_ids` created? Why am I seeing a loading screen in BOI's app during authentication? What banks are supported in Spain? 🇪🇸 What is the difference between PSD2 and Open Banking? How can I get certificates with Starling? Comments 0 comments Please sign in to leave a comment.