Hi, I think to start with this question you need to contact a company that can build a banking app. After all, there are professionals who have experience in this field. From what I know, the process itself is quite expensive both in terms of resources and time. However, if you provide financial services as a banking institution, customers who use your application will be able to gain uninterrupted access to a variety of functions that will allow them to better manage their finances and banking information.