Splitwise has some basic support for this now, depending on what you’re looking for. We now support multiple email addresses for a single account, so you can more easily share one account with multiple people.
However, we won’t automatically adjust how much you should owe as a “couple”. For example, if “Bob” adds an expense with “Sue and John’s Couple Account”, then the bill will be split 50/50 between those two Splitwise accounts. I can definitely see how it would be useful to automatically make Sue and John pay for 2 shares, but we’re unlikely to add that feature in the near future. For now, you can still work around this by manually using the “Split by shares” option when adding a bill, and assigning 2 shares to the relevant account.
An error occurred while saving the commentAnil Goyat commented
Storing bank account #s is unfortunately tricky, as there are some serious security concerns around bank #s here in the US and in some other countries. Still, we’d like to do it if possible. It’s not on our roadmap yet, but we’re definitely considering it for the future.