If you are looking to develop a banking app using blockchain technology, there are a few key aspects to consider that will help ensure security and compliance. Blockchain has the advantage of being decentralized and highly secure, making it ideal for processing financial transactions. However, it is important to not only choose the right technology, but also consider legal aspects such as data security standards and compliance.
An article I recently read goes into detail about the stages of developing such apps, from initial concept to launch. It also covers best practices for integrating with banking systems and ensuring user privacy. It is a great resource if you are looking to take your project in this direction.
I recommend reading the article at https://merehead.com/blog/develop-banking-blockchain-app/ to better understand how to ensure the success of your blockchain project.