Mobile app for investment tracking

I'm looking to hire a talented and experienced developer to help me create a mobile app for investment tracking that is compatible with iOS devices. This app must be able to handle a wide variety of tasks, including tracking current investments, providing portfolio insights, and more. I have a detailed list of specific features in mind, so I'm looking for someone who can help me refine this list and make sure the final product meets my expectations. My preferred method of tracking investments within the app is to sync with an excel sheet to allow for automatic tracking, but I'm open to hearing any suggestions to ensure the best possible user experience.