Street performers rely more on apps like Venmo as cash fades

Natalia Paruz, who serenades straphangers with her musical saw, isn’t getting the tips she used to. That was clear on a recent Thursday at the Herald Square station in midtown Manhattan, her gold-colored tip bucket only showing a couple dollar bills and some coins halfway through a three-hour performance during the afternoon rush. “I have so many people who come to me and say to me, ‘I love your music, I want to give, but I’m sorry, I don’t carry cash,’” said Paruz, who calls h