The automatic mobile app Digit is a service that saves money for you once connected to your checking account. Instead of setting a finite amount that is withdrawn on regular schedule, it learns when your bills are due, looks at your spending habits, and then only withdraws cash when it thinks you won’t miss it. Now the app is expanding its services by adding an option that let’s users pay off credit card debt with money in their Digit account. So far, the app has helped people save over $1 billion by keeping them on top of their finances.