Would be great to get a bit more functionality with the categories, as they will often be wrong and take significant time to adjust if you don’t keep on top of it.
Be able to select multiple payments (eg to move them all into one category)
Be able to set all past/future versions of payments to a certain category (as we can with Monzo accounts) for the non-Monzo cards we have added to the app (eg Amex credit cards)
Have access to custom categories for Monzo joint accounts (eg if both people have premium/plus Monzo)