Performed comprehensive manual testing of a personal finance application featuring subscriptions, multi-currency support, expense tracking, and financial analytics. Tested core user flows including subscription management, expense creation and editing, statistics, currency handling, navigation, and edge-case scenarios.In addition to functional testing, conducted a UX and product audit focused on improving usability, financial data clarity, user engagement, and the perceived value of the Premium subscription. Provided practical recommendations for optimizing expense analytics, simplifying user flows, increasing subscription conversion, and improving long-term user retention.Each identified issue was documented with detailed reproduction steps, expected and actual behavior, user impact assessment, and actionable recommendations for product improvement.