BillSplitter is described as 'A free, spreadsheet-style bill splitting app for groups. Easily track expenses, calculate who owes what, and settle up—perfect for trips, roommates & events' and is a Budget Manager in the business & commerce category. There are more than 50 alternatives to BillSplitter, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet apps. The best BillSplitter alternative is Spliit, which is both free and Open Source. Other great sites and apps similar to BillSplitter are MoneyManager Ex, BillSplit, Recurring Expense Tracker and Splitwise.