In today’s world, almost everything has been digitized. We are dependent on computers to perform record keeping and calculations tasks instead of traditional record keeping systems. Similarly, our day to day life is being expensive day by day as we spend on sectors of food, clothing, shelter, entertainment and many more. Most of the people cannot track their expense and income due to which they may face money crisis, so in this case Expense tracker application can help the people to tracking income-expense day to day and making life tension free. This project is a Flask application based on expense and income tracking system. This project aims to create an easy, faster and smooth tracking system between the expense and the income. This project also offers some opportunities that will help the user to sustain all financial activities like digital automated diary. The users can define their own categories for expense type such as food, rent, miscellaneous where they have to enter the money that has been spent and add some description to specify that expense. The user can view and analyze their expenses via the use of diagrams: pie-chart and bar-diagram.