Billio app is a personal finance manager that allows users to easily calculate and track their monthly bills and expenses. With a simple and intuitive interface, users can input and categorize their expenses, set budgets, and view detailed reports of their spending habits. The app also includes helpful features like reminders for upcoming bills and real-time updates on account balances. By providing users with an accurate and easy-to-use tool for managing their finances, the app helps them stay on top of their expenses and make informed decisions about their money.