Nationwide works on a bunch of fruity flavours of open android I’ve tried, you also have the benefit of supporting a cooperative with ethical investment, voting rights and profit share.
I'm looking into the Co-op bank. I had an account with them but I left after they became insolvent because their CEO was having chemsex with rent-boys and screwed up the bank's finances to the point where it ended up being de-Co-oped and taken over by a commercial bank. It's a Co-op again now and seems to be better run.
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