Comprehensive Finance Productivity App Development

I'm seeking an experienced app developer to create a comprehensive finance productivity app. The app should integrate multiple functionalities to manage all aspects of finances, including: - Budget tracking - Expense management - Investment tracking Ideal Skills & Experience: - Proven app development experience, particularly in finance-related applications - Strong understanding of UX/UI design principles - Familiarity with security protocols to protect sensitive financial data - Ability to integrate multiple financial services and tools Please share your portfolio and relevant experience.