John Adams

It was inevitable that someone would try to add up those extra seconds it takes to perform an EMV transaction, and when Cayan did it concluded that EMV is forcing U.S. consumers as a whole to spend years in extra time at the register.

Simply offering the best reward or rebate isn't always the best way to sell in a multichannel world, and Wallaby is tweaking its recommendation technology to match the most advantageous card to a particular moment and location in time.

Android Pay has added scale, winning support from banks including Chase, Santander and TSB, and broadening its Web payment capabilities.

Mastercard and Visa have now each entered a détente with PayPal, agreeing that a highly competitive stance is not of much use if it makes it too hard for consumers to pay for things.

Fresh off of a series of partnership deals to extend carrier billing in Europe, Boku has attracted an additional $13.7 million in venture funding to back the San Francisco company's global ambition.

Blockchain has become popular for some startups selling low-friction cross-border transactions, and Visa is looking for banks to participate in a pilot program to assess potential opportunity in the technology.

Samsung is adding support for Samsung Pay contactless payments in its new Gear3 smartwatch amid a marketwide proliferation of transactions for connected devices and clothing.

E-Commerce startup CaribShopper is fresh off winning an exclusive partnership with eBay to cover its expanding Caribbean footprint as it tackles a market that has a lot of promise, but also challenges in processing digital payments.

The refrain is familiar by now—health care payments are more complicated than consumer payments and require special technology and products. But there's another difference between health care providers and the rest of the world, one that's just as vexing and equally attractive to technology vendors.

ClearXchange has access to a majority of the market's online banking accounts as it takes on Venmo, but there's one thing it may not have.