That is just one-tenth the rate in on-line banking, according to an Internet research firm. Thirty-three percent of customers who sign up for on-line banking stop using it, Cyber Dialogue found, and 65% of the defectors say they have no intention of returning.

Eight-month-old First Internet said one reason for its stable customer base -- which is also more loyal than the norm in traditional retail banking -- is its focus on customer service. Another reason is its integration of checking, savings, and loan information into single accounts that are updated in real time.

Limited Time Offer

Save $400 off your subscription. Special offer ends April 30, 2017.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.