Here's something interesting from the recent FDIC report on How America Banks. https://www.fdic.gov/analysis/household-survey/2019report.pdf

Between 2015 and 2017, the % of households that used mobile as the primary method to access their bank account jumped from 9.5% to 15.6%.

Mobile stole that share increase relatively equally from the other channels (branch, call center, online, ATM), but branch was the biggest loser (not unsurprisingly), dropping from 28.2% in 2015 to 24.3% in 2017.

In more unsurprising news, mobile continued gaining ground between 2017 and 2019, going from 15.6% to 34%.

What did surprise me is that this jump in mobile came primarily at the expense of online, which dropped from 36% in 2017 to 22.8% in 2019.