Mint is a free app, but it may generate fees if you try some of the various functions it offers. The app allows you to see the money in your account and set up budgets with your money. You may see which bills are coming out next and you can have the app warn you if bills are due so that you may avoid late fees. Mint draws information from various websites and puts it in one place so that you may see things such as your various bank balances in one place without having to log into multiple sites.