You answer:

Nowadays it is difficult to imagine any successful business without an application. Banking ecosystems thus increase the attractiveness of both the bank itself and its software for the client, because in addition to directly banking products, he begins to use additional services that are concentrated within one application. I advise you to find more information on this topic here https://www.eliftech.com/insights/open-banking-app-ideas-use-cases-for-fintech-founders/