I realize that there are any number of these questions on here. I didn't manage to find one that related to my specific situation, however.
First, I am outside mint.com territory.
Second, I am a member of a two-income household - we're not married, but we both have personal and shared expenses.
Third, we both operate on a number of different devices. A bunch of PCs and a Mac, some iPads, an iPhone, a Windows Phone...
This really makes me think about a web application, but I have not found a lot of good alternatives..
We would like to be able to keep track of our own bank cards and accounts, while both updating the things we have in common (credit card, loans, insurance for house and kids etc ..). The ability to track categories of spending as well as budget planning would be a nice bonus.
If it matters, we're located in Norway. We do not expect online banking integration, as that currently seems to be impossible here for security reasons (that is what they tell us, anyway).
EDIT: It doesn't HAVE to be multi-user as such - we're quite happy using the same user if we need to, as long as we can divide stuff into multiple accounts etc.