Online, handles complex scenarios like shared expenses, loans etc, syncs with bank accounts automatically (paid), has api-s to download the data, automatic tagging, customizable rules

Smart tagging allows me to quickly organize my spending into different categories. I can also track all my account types, including loans, vehicles, houses, etc.

I love that Buxfer gives me control of whether or not to sync/import my transactions from my banks and credit cards. I like to input transactions manually but sync my investments, so this is perfect for me.