Fifteen years ago, when she founded Mothership Coffee Roasters, a chain of coffee shops in Las Vegas, she began using Square, a low-cost digital payments system for small businesses.

With digital labels, prices can be updated within two minutes after a few clicks through its mobile app for workers called Me@Walmart, the company said. The new labels are small square screens ...

The days of placing a point-of-sale terminal on a small business’s countertop and calling it enough ... “Think about a restaurant who buys a Clover or Square when they open, now has three locations ...