This is the hope of many financial technology - fintech - start-ups aiming to transform our money management habits.
They think we now trust our mobile technology enough to carry out banking, money transfers, investments and loan applications without ever stepping into a bank branch or writing a cheque.
But are they right?
One start-up is going a step further, bringing many financial services together onto one app so that you have complete visibility of all your cash transactions in one place.
The app, called Bud, has been developed by 26-year-old Ed Maslaveckas. He says: "Many people simply don't have the time or expertise to track down the apps that can help them manage their money.
"So we've created an independent, universal banking app for my generation and anyone else who wants to make their money work harder for them.