The survey, carried out in NSW and Victoria, found that the increasing obsession with technology was not carried into people's favourite watering holes.
It canvassed the views of 1001 people and was implemented by CoreData between 5 and 11 February.
A statement from BankWest said respondents were using apps for weather forecasts (67.6%, music (64.9%), ordering food (44.9%), Uber (43.1%, TV (37%) and booking appointments (36.4%).
About half (49.5%) of those surveyed said they only carried cash at times or for a specific reason.
Bankwest Customer Solutions & Insights executive general manager Pieter Vorster said: “These results are illuminating, as they hint at the social circumstances in which people still find physical cash preferable.
“Digital solutions have made life more convenient in many cases, but it’s clear there are times when people prefer the simple – and, perhaps, less socially-disruptive – option of physical cash.
“In social situations, splitting a bill by handing over cash might be preferred, as it means you don’t have to stop conversation for account details, or to upskill a friend on digital options.
“It will be interesting to see if and how those trends change in the coming years, as new digital services are introduced, and technology becomes even more ubiquitous and second-nature.”