https://techcrunch.com/2018/06/15/zelle-forecast-to-overtake-venmo-this-year/

Despite some concerns over its adoption by scammers, new payment service Zelle is shaping up to overtake rival Venmo this year, according to a new forecast from eMarketer. The firm expects Zelle to grow more than 73 percent in 2018, to reach 27.4 million users in the U.S., ahead of Venmo’s 22.9 million. Square Cash will trail with 9.5 million users.

This growth isn’t necessarily chalked up to user preference, but rather, ubiquity.