Those of us of a certain age remember life before PayPal. But as we continue to pay for more and more things digitally, it's increasingly important to have a safe and secure — and easy — way to do it. PayPal, of course, is one of the biggest names in that space.

Samsung Developer ConferenceBut another that's been mostly behind the scenes is Braintree. It's used as a facilitator for credit card transactions. If you've used Uber, you've seen Braintree in action, making it possible to switch from, say, your company credit card to your personal card, with just a few taps. (Which, in fact, is what I do all the time.)

We caught up with Jonathan LeBlanc and Tim Messerschmidt from PayPal and Braintree at the Samsung Developer Conference to see what's new, and what's to come.