Splitwise user here. Interface is clear and easy to use with most of the required functionality. Personally I find the per-bill itemised expense part of Splitw

Splitwise user here. Interface is clear and easy to use with most of the required functionality. Personally I find the per-bill itemised expense part of Splitwise essential, being able to split a receipt into it's items and then charge particular participants for only certain items. Uploading images of receipts to each bill is also essential imo.