The neobank, which has 3.5 million European customers, is starting with fee-free checking, a debit card and real-time transactions. It's part of a wave of competition arriving from overseas.
Huntington, Capital One and Citi are tops with consumers, but overall satisfaction scores have declined as users have been overwhelmed by the constant rollout of new features.
The technology has become controversial for its potential for bias. Notre Dame professor Kevin Bowyer explains what his studies of this issue have found.