My idea is kind of related to custom categories, I’m not entirely sure it fits here bit I was pointed here from twitter so will post it here anyway.
With Christmas coming up I think a really good feature would be a category (custom category?) that has a budget associated with it. The use case is I have two kids and I want to spend say £200 on each. Every time I buy a present I’d mark it as category “Kid A” or “Kid B” and the app would say “You’ve spent £82 on Kid A and have £118 left to spend on them” or something.
This would be agnostic of months or anything, maybe you’d set an end date on it (Christmas Eve or something) at which point the category would “expire”.
I just think it would be a really good way of keeping track of what you’re spending at Christmas which is probably the most expensive time of year.
However this would rely on splitting a single spending instance across multiple categories but I think the UX for this could be made easy. In the app just select the transaction and change category like you do now but allow multi select on the categories, then if you select more than one you get another screen with sliders to select the amount for each one, the bottom category with be the “main” category and changing the sliders on any categories above it with take away or add to that bottom one which doesn’t have a slider and is just “everything not selected in the other sub categories”.
If that makes sense?