Feature suggestion: Split by adjustment
First of all, thank you for your work! I am excited to start using your application :)
I have been using Splitwise earlier, and a feature I would like to request that it has, is the "Split by adjustment" feature. It is maybe easiest to explain with an example.
Consider two persons, Alice and Bob, who go grocery shopping. Their intention is to split everything equally between them, as long as the things that they buy are used by both people. However, along the way Alice finds some things that she wants to buy, that Bob is not going to use. To make the split fair, Alice and Bob want to adjust the bill, so that Alice fully pays for the things that she bought as "extras".
Alice pays a total bill of 100 euros. The price of her extra things was 12.79 euros. Then, the shares of the bill is going to be:
Total: 100
CommonShare: 100 - 12.79 = 87.21
Bob: CommonShare / 2 = 43.605
Alice: 12.79 + CommonShare / 2 = 56.395
The example may seem simple since there are only two people involved. However, this feature has proven itself useful when a bigger group splits something and everyone has a different adjustment.
What do you think?