Using a bank account aggregator simplifies financial management by consolidating all your bank accounts, loans, and investments in one place. It saves time by eliminating the need to check multiple platforms, provides real-time transaction updates, and helps track spending habits. It also aids in budgeting and planning by offering a holistic view of your finances, empowering better decision-making. Security features ensure your data is protected, making it a convenient tool for staying on top of your money with minimal effort.