It is natural for an organization to expect you have experience developing the type of applications they are hiring you to work on. You should anticipate this question and be prepared to respond to it. You can research the type of applications the organization creates using the job posting, their website, and conversations with current and former members of their software development team. If you don't have direct experience with the type of applications the company creates, admit this, and then discuss how your previous experience working on similar applications will transfer to this role.