Cash App, Zelle and Venmo money transfer apps generate thousands of complaints A new report revealed over 5,000 complaints in the last year involving person-to-person payment apps including Venmo, Cash App and Zelle. By: Jackie Callaway and last updated 2021-07-16 17:47:06-04 TAMPA, Fla. â The pandemic prompted consumers to go digital when it comes to paying for almost anything. From the babysitters to lawn services, even friends who need to borrow a few dollars; it was all done digitally. But the convenience some of these person-to-person apps offers can come at a cost. The apps can open usersâ bank accounts to thieves. And the Consumer Financial Protection Bureau reports a flood of complaints, more than 5,200 between May of 2020 and April of 2021.