So sorry for the trouble! This is on our list of possible improvements for the future – I can’t say exactly when it’ll be added, but we know it’d be a useful improvement. In the meantime, our apologies for the inconvenience!
While this was implemented for groups, and that is great, it would still be very useful to be able to save this settings for specific users. My main case is to split through the same amount of shares with my partner. I created a group to save the unequal split, but now it is cumbersome that bills are in two different places now (directly with the user, and through the group). I have gone back to splitting manually each time in order to have all bills in the same place.
Still rooting for this suggestion!
I’ve re-opened this ticket due to a re-request on Feb 22 2015. – Jon
This is a major pain point when using Splitwise on iPad, is a constant scare to press that "Done" button in hopes i dont accidentally tap outside and lose all the bill.