Bankin' is a personal finance app that connects to a user's accounts at several banks and gives an overview of them in one place. It is available as a mobile app for iOS and Android, as a browser extension and through a web application. The app is aimed at private individuals who want to see accounts held at different banks together.
Bankin' SAS is registered in Paris, and its legal notice names no shareholder. The hosting provider named in the legal notice is Amazon Data Services Ireland, so hosting is located in the EU, although the infrastructure depends on a US cloud provider. For a European organisation, the relevant sovereignty questions are the company's ownership, which is not stated publicly, and the use of AWS as infrastructure. The service is aimed at individual users, so it is not a substitute for organisation-level financial tooling.