Nineteen banks, including BofA, Chase, Citi, and Wells, have teamed up to roll-out and support Zelle, a peer-to-peer payment app that will let users send money in same fashion as Venmo. Zelle's advantage maybe the instant transfer to customer's bank accounts given its big bank connections---although Venmo plans to roll out more instantaneous transfers with the help of Visa and Mastercard. A standalone Zelle payment app should be available to anyone with a debit card, regardless of where he or she banks, by the middle of the year.