Square’s Invisible Mobile Payment Solution: Software That Gives You Superpowers

“A lot of people think that design is adorning something,” Robert Anderson began as we sat down. As creative director at Square, Anderson does the kind of design that people aren’t supposed to notice. “It’s not visual.” On the contrary, in the mobile world, the best design makes the software disappear.

Square’s first product, a credit card reader that plugs into smartphone audio jacks,