Is there an option to apply for a mortgage loan?

In the standard Android SDK, there is no built-in capability to implement a mortgage loan, as it is a financial service requiring integration with banking systems and appropriate APIs. To implement such a feature in an app, you need to integrate with banking services via their APIs, ensure data transmission security, and comply with legislation. Usually, this is done through REST APIs of banks or financial organizations, and through specialized SDKs if provided by the bank.