SIOUX CITY -- Mari Pizzini used Venmo for the first time over Labor Day weekend.
Although Pizzini said her friends and boyfriend have been urging her to use the mobile payment service, which is owned by PayPal, for about six months, the Morningside College junior was reluctant to make and receive payments using Venmo's mobile app.
"They've all been using it for a long time and they don't carry cash with them ever, so whenever I needed them to pay me back, they were like, 'Well, get Venmo; and I'll pay you back that way,'" she said.
A growing number of Americans never or rarely carry cash.
People are also reading…
According to a 2018 Pew Research survey, roughly 3-in-10, or 29 percent, of U.S. adults reported that they make no purchases using cash during a typical week, up from 24 percent in 2015. Over that three-year period, the percentage of respondents who said they made all or almost all of their weekly purchases using cash declined from 24 percent to 18 percent.
Pizzini's mother is a computer security specialist, so the English major from Helena, Montana, was taught early on not to share her personal information online. She said her debit card was hacked during her freshman year of college, which further heightened her worry about about inputting bank information and card numbers online.
"I found out that my card was being hacked in the middle of class when I got a call from my bank. They were basically asking me why I was paying $400 for extension cords," she said. "I kind of went into a panic, because I couldn't find my card. I thought somebody had stolen it, but it was just misplaced in my car. I'm still not sure how they got my information."
Pizzini said she was "broke" for two weeks, as she waited for the money to be refunded. Her savings account was also frozen during that time period because it was connected to her checking account. In spite of her hesitations about Venmo, Pizzini finally gave in.
Venmo account holders can transfer funds to others via a mobile phone app. In the first quarter of 2018, Venmo processed $12 billion in transactions.
"I really needed people to pay me back and I had no other way to do it, so I decided to break down," she said.
Kaitlyn Polk, a senior from Elgin, Nebraska, who is majoring in mass communication and nonprofit management, said she normally doesn't carry cash. Instead, she said she opts to use her debit card or apps on her phone.
"It's just convenient to have a card on me or have it connected to some app on my phone," she said. "One of the apps I use most is Venmo."
Polk said she uses Venmo to pay and receive payment from friends and family when they go out to eat or purchase concert tickets.
Mari Pizzini display the Venmo app on her phone. The Morningside college student uses the mobile payment service to send and receive money from friends.
"They say, 'Oh, I'll Venmo you $10 for dinner,'" she said. "It's just real easy, especially having the money stay on the Venmo app so you don't have to put it in your account if you don't want to. To be able to take it from the app into your actual bank account is nice, too."
Polk said she trusts the security of apps like Venmo more than online retail sites that store credit and debit card numbers for future use.
"I don't feel like I have a problem with Venmo or Cash App," she said. "I have text messages sent to me every time I make a transaction. Depending on the app, you can have text message receipts sent to you or email receipts."
PHOTOS: Woodbury County Courthouse past and present
First courthouse
The first Woodbury County Courthouse, 1878-1918, stood at the southeast corner of Sixth and Pierce streets.
Courthouse construction
The Woodbury County Courthouse is under construction in this photo from Sept. 19, 1916.
Courthouse construction
The Woodbury County Courthouse is shown under construction in this photo from May 24, 1917. The courthouse opened the following year.
Courthouse drawing
An early drawing of the Woodbury County Courthouse is shown.
Courthouse dome
The Woodbury County Courthouse dome is under construction in this photo from Oct. 17, 1917.
'Western Architect'
A page from "The Western Architect" publication from February 1921, showing the interior of the Woodbury County Courthouse.
'Western Architect'
A page from "The Western Architect" publication from February 1921, showing the interior of the Woodbury County Courthouse.
Courthouse and City Hall
Traffic drives on Douglas Street in front of the Woodbury County Courthouse, left, and Sioux City Hall in about 1965. City Hall was found to be tipping in January 1965.
Woodbury County Courthouse
The current Woodbury County courthouse.
Courthouse interior
A view from inside the Woodbury County Courthouse.
Light fixtures
Light fixtures inside the Woodbury County Courthouse.
Courthouse mail chute
The 90-year-old mail chute in the Woodbury County Courthouse was shut down in 2011 because it didn't meet U.S. Postal Service requirements for public access.
Courthouse security
Woodbury County Sheriff Dave Drew is shown in the county courthouse in a April 2015 photo.
Courthouse elevators
The elevators of the Woodbury County Courthouse, which date to 1918, are shown.
Courtroom repairs
Kenny Schmitz, Woodbury County Building Services director, climbs over a bench in Courtroom 203 on the second-floor of the county courthouse in July 2016. The courtroom was closed while workers repaired a slab of marble that fell out of a window surround and almost caused stained glass windows to fall out of their frames.
Courthouse terra cotta
Straps and a board hold up a failing terra cotta tile at the Woodbury County Courthouse in 2016.
Courthouse terra cotta
Kenny Schmitz, Woodbury County Building Services Director, raises a lift to a loose piece of terra cotta at the Woodbury County Courthouse in 2016. Terra cotta tiles on the south side of the building's exterior were in immediate danger of falling down to the ground and there several additional areas where cement grout was missing on the decorative tiles.
Election Watch Party
People attend an election watch party at the Woodbury County Courthouse in November 2016.
Courthouse repair
Ceiling tiles at the Woodbury County Courthouse, shown in December 2016, were in need of repairs.
Courthouse architecture
The Woodbury County Courthouse features sculptural work by Alfonso Iannelli, an influential Italian-American modernist artist who briefly worked with Frank Lloyd Wright.
Courthouse architecture
Two buffalo head sculptures can be seen on the backside of the Woodbury County Courthouse, which opened in 1918. The building is an example of Prairie School architecture.
Woodbury County Courthouse
The Woodbury County Courthouse, which opened in March 1918 at 620 Douglas St., houses courtrooms and most county departments.

