What's your checking account balance? Your credit score? The top personal finance apps we've tested can give you the answers in seconds. We'll help you choose the right one to take control of your ...

Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.

Digital transactions are commonplace, making physical cash and cards a distant memory. It is now second nature to use the device we already handle constantly—our smartphones —to pay for groceries, gas ...