The upgrade to Westpac’s android app comes after the bank reported a 15 per cent jump in customers doing all their digital banking on a mobile since January. “This is a big leap forward for the Android universe,” Mr de Bruin said.

In a sign of the new rivals facing banks such as Westpac, Bendigo and Adelaide Bank-owned neobank Up on Friday flagged its move to start selling mortgages early next year, using Bendigo-backed fintech Tic:Toc to approve loans digitally.

Up chief executive Xavier Shay said youth-focused Up had 40,000 customers saving for a home loan, and while it would not be the cheapest in market, it would be competitive on price. “Given the low cost base in our model, I think we can be very competitive on rate versus the majors, whilst providing more value through our experience,” he said.

In the latest half Westpac’s loan growth improved, but its margins were also squeezed as it competed aggressively on price, sparking a sharp share price fall earlier this month. Despite signs house price growth is slowing after banks have raised fixed rates in recent weeks, Mr de Bruin was upbeat on residential property lending.

“We’re bullish about this line of business for Westpac. We’ve seen a dramatic turnaround on previous years, where we were shrinking,” he said.